Case Study
Case Study
Case Study
INTRODUCTION
Moreover, scientific data reports that fibroids have been linked to poor obstetric
outcomes, are found in 0.1–10.7% of pregnant women, and their prevalence rises if
women want to postpone having children until a later age. Pregnancy-related
hormones influence the size of uterine fibroids, and fibroids have many impacts on
pregnancy. Women with uterine fibroids in pregnancy generally have concerns related
to adverse outcomes. However, these women generally have uneventful outcomes in
pregnancy. Several studies have reported inconsistent relationships between uterine
fibroids and adverse obstetric outcomes. Miscarriage, premature labour, antepartum
haemorrhaging, malposition, malpresentation, obstructed labour, uterine inversion,
post-partum haemorrhaging and puerperal sepsis are among the obstetric
consequences of co-existing uterine fibroids in pregnancy.
INDICATION
Lower abdominal pain and vaginal bleeding in pregnancy. ??? cause and foetal well
being.
EXAMINATION DATE
PATIENT INFORMATION
Date of Birth 22 March 1980
Parity 0
Gravida 1
Last Menstrual Period 27 May 2022
Contraceptive Nil
Marital Status Married
Sex Female
Level of Education Ordinary Level
EQUIPMENT
Mindray DC-6 Ultrasound machine.
3.5-5MHz curvilinear probe .
Sony High glossy thermal paper.
Ultrasound gel.
Sony Ultrasound Printer.
Uterine Measurements
Serial Parameter Measurement (cm)
(a) (b) (c)
1. Uterine length 11.56
2. Uterine width 9.22
3. Uterine height 7.18
4. Uterine volume 400.3 cc
5. Uterine body 27.96
6. Cervix length 5.57
Comment
1. Single live intrauterine embryo of 7 weeks 5 days gestational age by scan.
2. Perisac/ subchorionic bleeds ??? (Extra gestational bleeds).
3. The anterior and posterior myometrial inhomogeneous hypoechoic well
defined masses measuring 4.03 cm x 2.82 and 1.76 cm x 1.57 cm respectively are
suggestive of subserosal fibroids (Fibroids in Pregnancy).
4. Recommend a follow-up sonogram in one or two week to assess pregnancy
progression.
5. Correlate clinically.
Signed………………………………….S. TANGWADZANA
(Diagnostic Radiographer/Student Sonographer)
DISCUSSION
Etiology and Pathophysiology
Although, the exact etiology of fibroid is not known yet, the growth of uterine fibroid
is featured as a benign, hormone sensitive diffuse or nodulus hyperplasia of
myometrium, and is characterized by having multiple factors of pathogenesis and
systemic changes. Uterine fibroid is developed on the background of hyperestrogens,
progesterone deficits and hypergonadotropins. The majority of the researchers
consider that the growth of fibroid depends on concentration of cytosolic receptors to
the sexual hormones and their interactions with the endogenous or exogenous
hormones. In accordance to clinical observations, it can be admitted that both growth
and regression of fibroid are oestrogen-dependant; the tumour size gets increased
during pregnancy and is regressed after menopause.
These observations support the concept that the same or similar hormonal and growth
factors that normally cause uterine growth during pregnancy also stimulate growth of
fibroid early in pregnancy. This may serve to explain the paradoxical observations
that large fibroids remain unchanged or increase in size late in pregnancy. It is likely
that during pregnancy, fibroid oestrogen receptors are down regulated due to massive
amounts of oestrogen. Without effective oestrogen receptors and thus oestrogen
action in the fibroids, epidermal growth factor binding is also decreased.
These fibroids frequently cause abnormal menstrual periods, pelvic pain, and pressure
symptoms on nearby tissues and organs. When the urinary bladder, ureters, and other
nearby organs are subjected to pressure, they can be lethal in some situations. (14)
The actual cause of uterine fibroids has yet to be determined. However, cytogenetic
and genetic investigations indicate that they are caused by somatic mutations in
myometrial cells with chromosome 6, 7, 12, and 14 abnormalities.
Pregnant patients with fibroids are exposed to a high rate of complications during
antepartum, intrapartum, and postpartum periods. The prevalence of uterine fibroids
during pregnancy reported in some studies ranges from 1.6 to 16.7%, varying from
one trimester to another, (Shavell, V.I. et al, 2012). Previous data show that the
number of fibroids increases with the patient’s age. Like the literature data, which
indicate that fibroid distribution in pregnant women increases beyond the age of 35,
the patient’s age in this case is 42 years, of black race and nulliparity. It seems that
nulliparity plays an important role in the etiology of fibroids. It is known that
circulating hormones, such as oestrogen and progesterone, are considered modulators
for tumour growth. Consequently, fibroids should develop more frequently in
pregnancy. Being of the black race, nulliparity, and being of reproductive age are all
risk factors in this patient.
The presence of fibroids in very young women can be correlated with a strong family
history, but in this case the patient had mentioned having a negative first-degree
relative with uterine fibroids and neither had she knew of anyone with fibroids in her
hereditary collateral history. Adipose tissue is a recognized extra source of oestrogen,
which is thought to play a role in the development of fibroids. The prevalence of
overweight and obesity is on the rise, being higher in urban area and among educated
women. However, in the present case study, the patient is not obese.
In this case study, diagnoses was made in the first trimester. This can be explained by
the fact that more and more pregnant women are going to the gynaecologist to
evaluate pregnancies from the first trimester, which makes it easier to establish the
diagnosis of associated fibroids, with the uterus and pregnancy being small. More-so,
this was due to patient’s anxiety as she was bleeding knowing that she was pregnant
for the first time which made her seek medical intervention.
The main effect of pregnancy on fibroids is related to the size of the uterine fibroids.
For decades, scientists have debated whether hormonal changes that occur during
pregnancy can affect the sizes of uterine fibroids. Uterine fibroids were considered to
enlarge during pregnancy for several decades, especially during the first trimester.
Benaglia et al., in their prospective cohort study on 25 women with fibroids, reported
that, during the first 7 weeks of pregnancy, the sizes of the fibroids grew significantly
to more than double their initial sizes. This therefore calls for the need to book follow-
up scans to assess the progression of pregnancy and monitoring the growth of the
identified fibroids.
Changes in gestational sac shape seen during scanning may be caused by external
compression due to an over-distended bladder or bowel or to fibroids in the uterine
wall. Myometrial contractions may distort the sac shape in the first trimester.
Ultrasound, which is utilised as a first diagnostic tool for myomas, is used to screen
them. The accuracy of diagnosis, size, and position of these fibroids tumours, as well
as differentiation from an adnexal mass, has greatly increased since the debut of MRI
scan as a diagnostic tool. However, MRI has been described as the most expensive
technology used for analysing uterine fibroid.
MANAGEMENT
Because of the high likelihood of uterine problems such as necrosis and malignant
transformation of benign fibroid tumours, treatment of uterine fibroids should be
tailored to the size and location of the tumour, patient’s age, presenting symptoms,
desire to maintain fertility and the gynaecologicals experience. Uterine artery
embolization, ablative treatments, expectant care, surgery, and medicinal management
are all options for treating this fibroid. Conservative, medicinal, or surgical treatment
options are available.
Patients who are asymptomatic are treated conservatively. This includes periodic
explanations, reassurances, and re-examinations. If anaemia is discovered in
symptomatic cases of menorrhagia, it should be treated. Menorrhagia can be treated
with tranexamic acid, combined oral contraceptives, or a levonogestrel-releasing
intrauterine device. Prescription of agonadotropin-releasing hormone analogue, which
has been used to limit oestrogen production and, as a result, reduces the mass of
existing fibroids, making them suitable for laparoscopic surgery.
CONCLUSION
Because of the risk of excessive haemorrhaging, obstetricians usually avoid the
removal of uterine fibroids during cesarean deliveries unless they are tiny and
pedunculated. Despite the fact that the majority of fibroids are asymptomatic, their
location and size may have an impact on the pregnancy and delivery process.
Performing routine myomectomies during cesarean section is not indicated, but it is a
feasible and safe technique in some cases, with a good prognosis for the patient.
Consequently, the decision of performing myomectomies during pregnancy can be a
challenge and must be performed for select cases. This procedure may have several
benefits, such as avoiding another operation to remove fibroids. Therefore ultrasound
plays an important role in obstetrics for the evaluation of fibroids, their location as
well as their number for monitoring their growth and planning of mode of delivery
appropriately.
REFERENCES:
Fibroids according to (Sanders R.C. and Winter T.C, 2007); are classified based on
their location in relation to the endometrial cavity as:
Submucosal - fibroids, which border on the endometrial cavity, often cause
frequent lengthy periods with intramenstrual spotting and may cause in fertility.
Intracavitary- Fibroids that lie within the cavity or protrude into the cavity which
are even more likely to cause vaginal bleeding and cramping.
Pedunculated- Fibroids that have a small neck and extend to the border of the
uterus. They may be hard to distinguish from adnexal masses and may twist and
infarct (torsion).
A 49 year old patient in this case presented the Gynaecology OPD with a painful mass
in lower abdomen with gradual enlargement of abdomen for last 7 months. She had a
clinical history of nausea, vomiting, weight loss, loss of appetite, pain in the lower
abdomen, intermenstrual bleeding and intermittent constipation.
INDICATION
Abnormal uterine bleeding ???. Rule out uterine fibroids/pelvic pathology.
Examination Date: 26 July 2022
PATIENT INFORMATION
Date of Birth 27 August 1973
Parity 3
Gravida 5
Last Menstrual Period Unknown
Contraceptive Nil
Marital Status Married
Sex Female
Level of Education Ordinary Level
EQUIPMENT
Mindray DC-6 Ultrasound machine.
3.5-5MHz curvilinear probe .
Sony High glossy thermal paper.
Ultrasound gel.
Sony Ultrasound Printer.
PATIENT PREPARATION, PATIENT CARE AND PROTOCOL
Standard gynaecological transabdominal scan protocol documented in appendix B
attached
OBSERVATIONS AND FINDINGS
There was a bulky anteverted and non-gravid uterus with a heterogeneous echotexture
measuring 11.14 cm x 6.42 cm x 9.93 cm. The uterus had an irregular shape with well
defined margins and a short normal cervix.
A symmetrical, well-defined, heterogeneous, solitary solid mass measuring 7.76
cm x 6.55 cm x 7.99 cm was seen occupying the myometrial layer of the uterus.
The intramural heterogeneous mass appeared as if it enclosed two echogenic
distinct masses with hypoechoic margins pushing the urinary bladder anteriorly.
The intramural mass does not cover the cervix though it occupies the anterior and
posterior aspects of the myometrium.
The endometrium was not visualised
Color Doppler ultrasound showed the fibroid’s circumferential vascularity.
Pulsed wave Doppler was not used to assess the waveform of the feeding vessels.
The ovaries were not visualised and there were no adnexal solid or cystic masses
seen.
The urinary bladder was distended with a relatively smooth mucosal outline and
its contents were not visualised hence its integrity was not assessed.
There was no free fluid in the pouch of Douglas.
There was a complex cystic abdominal mass seen antero-lateral to the uterus
with an echogenic irregular central intact solid mass. It measured 9,89 cm x 4,38
cm. Its length extends from the midline to the midclavicular line on the right
lower quadrant.
There was evidence of peripheral vascularity on color Doppler interrogation.
Uterine Measurements
Serial Parameter Measurement (cm)
(a) (b) (c)
1. Uterine length 11.4
2. Uterine width 9.93
3. Uterine height 6.42
4. Uterine volume 371.2 cc
5. Uterine body 27.49
Comment
1. Bulky non gravid fibroid uterus.
2. An intramural symmetrical, well-defined, heterogeneous, solitary solid mass
measuring 7.76 cm x 6.55 cm x 7.99 cm occupies the entire myometrium.
3. Complex cystic pelvi-abdominal mass measuring 9,89 cm x 4,38 cm.
4. Ultrasound guided biopsy is recommended.
5. Differential diagnosis could be:
Uterine lipoleiomyoma.
Focal adenomyosis.
Uterine leiomyosarcoma; though rare.
Correlate clinically.
Signed………………………………….S. TANGWADZANA
(Diagnostic Radiographer/Student Sonographer)
DISCUSSION
It has been generally accepted that myomas are more prevalent in blacks than in
Caucasian and Hispanic populations (Kjerulff, K. H. et al 1996). Although the cause
of the higher prevalence among black women is unclear, differences in circulating
oestrogen levels have been found. It is still unclear (Parker, W. H. 2007) whether
these ethnical differences are genetic or due to known variations in hormonal
metabolism, diet, or environmental factors.
Leppert et al. reported that the pathogenesis of fibroids seems to involve a positive
feedback loop between extracellular matrix production and cell proliferation, and
vitamin D might act to block the positive feedback. It is also interesting that myomas
and keloids, both more common in black women, have similar gene characteristics.
Furthermore, it is well known that family history could represent a strong
predisposing factor; the first-degree relatives of affected women have a 2.5 times
increased risk of developing fibroids. However, as recently reported from Saldana et
al., such bias would invalidate self-reported family history as a predictor of fibroid
risk (Saldana. T.M. 2013).
Patient Presentation
Abnormal uterine bleeding and intermenstrual bleeds are common symptoms of
uterine fibroids. Other symptoms however, include anaemia, back pain, pelvic pain
and pressure, constipation, urinary frequency/retention, miscarriages, or infertility.
These characteristic symptoms resembles those of 49 years old patient in this case
who presented to the Gynaecology OPD with a painful mass in lower abdomen with
gradual enlargement of abdomen for last 7 months. She had a clinical history of
nausea, vomiting, weight loss, loss of appetite, pain in the lower abdomen,
intermenstrual bleeding and intermittent constipation.
MANAGEMENT
Because of the high likelihood of uterine problems such as necrosis and malignant
transformation of benign fibroid tumours, treatment of uterine fibroids should be
tailored to the size and location of the tumour, patient’s age, presenting symptoms,
desire to maintain fertility and the gynaecologicals experience. Uterine artery
embolization, ablative treatments, expectant care, surgery, and medicinal management
are all options for treating this fibroid. Conservative, medicinal, or surgical treatment
options are available.
Patients who are asymptomatic are treated conservatively. This includes periodic
explanations, reassurances, and re-examinations. If anaemia is discovered in
symptomatic cases of menorrhagia, it should be treated. Menorrhagia can be treated
with tranexamic acid, combined oral contraceptives, or a levonogestrel-releasing
intrauterine device. Prescription of agonadotropin-releasing hormone analogue, which
has been used to limit oestrogen production and, as a result, reduces the mass of
existing fibroids, making them suitable for laparoscopic surgery.
CONCLUSION
Because of the risk of excessive haemorrhaging, obstetricians usually avoid the
removal of uterine fibroids during cesarean deliveries unless they are tiny and
pedunculated. Despite the fact that the majority of fibroids are asymptomatic, their
location and size may have an impact on the pregnancy and delivery process.
Performing routine myomectomies during cesarean section is not indicated, but it is a
feasible and safe technique in some cases, with a good prognosis for the patient.
Consequently, the decision of performing myomectomies during pregnancy can be a
challenge and must be performed for selected cases. This procedure may have several
benefits, such as avoiding another operation to remove fibroids. Therefore ultrasound
plays an important role in obstetrics and gynaecology for the diagnosis and evaluation
of fibroids, their location as well as their number for monitoring their growth and
planning of mode of management appropriately.
REFERENCES:
INTRODUCTION
First-trimester pregnancy is defined as the first 12 weeks after the patient’s last
menstrual period. It is the period of human development associated with the highest
complication rate. During this critical period, ultrasound may be used to confirm
intrauterine pregnancy, determine viability, and exclude ectopic pregnancy or
gestational trophoblastic disease (GTD).
A complete mole may be seen as an intrauterine mass with cystic spaces without any
associated foetal parts. In comparison, a partial mole may be visualized as a
gestational sac containing amorphous echoes representing foetal parts with an
enlarged cystic placenta. Pathogenetically, it is a complete or partial trophoblastic
proliferation (of cyto- and syncytiotrophoblasts) with hydropic degeneration of the
placental villi.
A molar pregnancy can have serious complications including a rare form of cancer
and requires early treatment. The majority of complete moles present with vaginal
bleeding and markedly elevated beta-human chorionic gonadotropin (b-hCG) values.
A molar pregnancy may seem like a normal pregnancy at first, but most molar
pregnancies cause specific signs and symptoms, including: dark brown to bright red
vaginal bleeding during the first trimester, severe nausea and vomiting, sometimes
vaginal passage of grape-like cysts, pelvic pressure or pain. Other signs are rapid
uterine growth where the uterus is too large for the stage of pregnancy, high blood
pressure, pre-eclampsia- a condition that causes high blood pressure and protein in the
urine after 20 weeks of pregnancy, ovarian cysts, anaemia and over-active thyroid
(hyperthyroidism).
Case Presentation: A 28 years old black African lady of unknown LMP, Para 2
Gravida 3 with positive pregnancy test done a week prior to her visit presented to the
Radiology Department complaining of vaginal bleeding and history of treated vaginal
discharge, nausea, vomiting and abdominal fullness. On physical examination, she
was anaemic, with raised BP, and relatively unstable. The physical pelvic exam had
revealed a small amount of dark blood without signs of active bleeding, an anteverted
uterus of eight weeks size and a closed cervix. She had no laboratory results of
quantitative beta-human chorionic gonadotropin levels and was referred by a General
Practitioner for ultrasound of the pelvis to rule out miscarriage.
INDICATION
First trimester obstetric scan to rule out early pregnancy miscarriage.
PATIENT INFORMATION
EQUIPMENT
Mindray DC-6 Ultrasound machine.
3.5-5MHz curvilinear probe .
Sony High glossy thermal paper.
Ultrasound gel.
Sony Ultrasound Printer.
COMMENT
A predominantly solid, large central heterogeneous echogenic intrauterine mass
that expands the endometrial canal with innumerable uniformly distributed cystic
spaces and no identifiable foetal parts or gestational sac is highly suggestive of
complete molar pregnancy/ hydatidiform mole.
A left ovarian unilocular hypoechoic complex cystic mass measuring 3.13 cm in
the short axis and 1.75cm in long axis is highly suggestive of left ovarian theca
luteal cyst.
No evidence of PID / ectopic pregnancy shown by ultrasound.
Recommend laboratory tests of quantitative beta-human chorionic
gonadotropin levels and a CT scan /PET scan to stage the disease.
Rescan after seven days with laboratory results of quantitative beta-human
chorionic gonadotropin levels.
Differential Diagnosis is of Abnormal villous morphology; or Early abortus with
trophoblastic hyperplasia; or Hydropic abortus.
Clinical correlation highly advised.
Signed………………………………….S. TANGWADZANA
(Diagnostic Radiographer/Student Sonographer)
DISCUSSION
Pathophysiology
A molar pregnancy is a rare complication of pregnancy characterized by the abnormal
growth of trophoblasts, the cells that normally develop into the placenta. In Europe,
North and South America, (Kubelka-Sabit, K.B., et al., (2017); reported that
hydatidiform moles observed in approximately 1 in every 1,000 pregnancies are
diagnosed as a molar pregnancy and the prevalence is 5 to 15 fold higher in East Asia.
In a complete molar pregnancy, an empty egg is fertilized by one or two sperm, and
all of the genetic material is from the father. In this situation, the chromosomes from
the mother's ovum are lost or inactivated and the father's chromosomes are duplicated,
thus, only paternal DNA is expressed. This most often occurs when two sperms
fertilise an egg/ovum, resulting in an extra copy of the father's genetic material
(Lurain, J. R. 2010). The karyotype of complete moles is usually 46,XX 90% of the
time and 46,XY 10% of the time; the chromosomes derived completely from the
father as a complete mole likely results from the fertilization of anuclear empty ovum
by a haploid sperm that duplicates its own chromosomes after meiosis.
On the other hand, in partial moles, the karyotype is 90% of the time triploid and
either 69,XXX or 69,XXY. This karyotype arises when a normal sperm subsequently
fertilizes a haploid ovum duplicates and or when two sperms fertilize a haploid ovum.
In partial moles, both maternal and paternal DNA is expressed.
Histopathology
Hydatidiform mole is characterized by an overgrown villous trophoblast with
cystic "swollen" villi which macroscopically can be visible in the
second trimester, as clusters of vesicles (similar to small grapes) developed from
the transformation of chorionic villi. Complete mole differs from partial mole, in
cytogenetic and microscopical appearance. Important is a complete lack of
embryonic/foetal tissue in complete moles and the presence of embryonic tissue
in partial moles.
Microscopically, a complete mole has markedly hydropic and deformed chorionic
villi with the formation of "cisterns" containing stromal fluid; there is a
peripheral proliferation of both cytotrophoblast and syncytiotrophoblast, arranged
in lace-like structures, papillary formation, or circumferential. In normal early
placenta the cytotrophoblast and syncytiotrophoblast are polarized. There is the
absence of foetal stromal blood vessels. An immature vascular network is
otherwise present, positive for CD31, with dysmorphic features such as a
complete lack of lumen.
In partial mole, there are hydropic chorionic villi surrounded by hyperplastic
trophoblasts with variable degrees of central cistern formation, with an irregular
maze-like pattern; also, there are normal chorionic villi and embryonic or foetal
tissue mixed with hydropic villi. There are recognizable foetal blood
vessels containing foetal red blood cells. The curettage material should be
examined carefully, especially in first trimester pregnancies, and if a partial mole
is suspected the whole specimen should be examined.
The main differential diagnosis is with a hydropic abortion, where the main clue
is the presence of villous oedema only with microscopical evaluation and lacks
cistern formation or trophoblastic proliferation.
A pitfall in hydropic abortion is the presence of polar stratification of anchoring
trophoblast in a first-trimester placenta. The villous size in hydropic abortion
ranges from small, to medium and large.
An important marker that aids in the diagnosis of the complete mole is the
presence or absence of p57 in immunohistochemistry. This marker is a paternal-
imprint inhibitor gene so its expression implies the maternal contribution; in
brief, the absence of p57 expression supports the diagnosis of androgenetic
gestational disease with complete mole (Xing, D. et al. 2021). Moles also
express p53, p21, cyclin E, and MCM7.
Patient Presentation
The case presentation of a 28 year old pregnant black African woman with complete
molar pregnancy after ultrasound scan, a history of unknown LMP, Para 2 Gravida 3
with positive pregnancy test done a week prior to her visit; complaining of vaginal
bleeding and history of treated vaginal discharge, nausea, vomiting and abdominal
fullness. On physical examination, she was anaemic, with raised BP, and relatively
unstable. The physical pelvic exam had revealed a small amount of dark blood
without signs of active bleeding, an anteverted uterus of eight weeks size and a closed
cervix. She had no laboratory results of quantitative beta-human chorionic
gonadotropin levels.
Case Discussion:
A significant risk factor for the development of complete molar pregnancy is the
age of the mother. Compared with the risk in women aged 21 to 35 years, the risk
is 1.9 times higher for women 35 years, and 7.5 times higher for women>40
years, including 1 in 3 pregnancies for women>50 years (MOJ Anat Physiol.
2020;7(5):150‒153).
The transabdominal ultrasound findings obtained are consistent with what is
documented in medical and reviewed literature above. However, such a
dependence is not established with regard to the risk of developing a partial mole.
Partial molar pregnancy is more common in women with a history of irregular
menstruation, miscarriage and oral contraceptives for more than 4 years, while
ethnicity, dietary factors and ovulation induction are not associated with an
increased risk.
Complete molar pregnancy is most often presented by vaginal bleeding at 6 - 16
weeks of gestation in 90% of cases. Other classic symptoms, such as higher than
expected gestational age, hyperemesis, hyperthyroidism and trophoblastic
embolization are less common in the first trimester and in recent years due to
earlier diagnosis, as a result of the widespread use of high-quality/resolution
ultrasonography and quantitative measurement of human chorionic gonadotropin
(hCG). Complete molar pregnancy is also associated with a similar clinical
manifestation.
In addition to the typical clinical manifestation as a result of excessive hCG
production, molar pregnancy is characterized by a specific ultrasound features.
These typical ultrasound manifestations of a complete molar pregnancy include
the visualization of a diffuse, multi-cystic and often hyper-vascular intrauterine
mass (“snowstorm” or “honeycomb” type) with no foetal tissues. Partial molar
pregnancy may present as a localized placental abnormality with a living embryo,
spontaneous intrauterine foetal death, or the presence of an empty gestational sac
(blighted ovum).
Some authors propose the following ultrasound criteria for specific findings of
partial molar pregnancy as a ratio of transverse to Antero-posterior diameter of
the gestational sac >1.5 and cystic changes in the placenta and/or irregularity of
the contour of the decidua, placenta or myometrium (Kirk, E. 2007).
During the first trimester, the frequency of diagnosing a complete mole is higher
than that of a partial mole, increasing with advancing of gestational age. Fowler
D. J., et al. (2006); analysed 378 ultrasound-proven molar pregnancies,
demonstrating the accuracy of the ultrasound diagnosis in 200 of 253 (79%)
complete hydatidiform moles and 178 of 616 (29%) partial hydatidiform
pregnancies.
Several factors determine the prognosis of a foetus in a partial molar pregnancy,
such as the karyotype of the foetus, the size of the area with hydropic
degeneration of the placenta, the rate of hydropic degeneration and the
manifestation of foetal anaemia or other obstetric complications such as pre-
eclampsia, thyrotoxicosis and vaginal bleeding.
According to Hsieh, C. C., et al. (1999); in singleton pregnancies with dizygotic
normal foetus with partial molar placenta, pregnancy development depends on the
genesis of placental degeneration, from amniotic diploidy to chorionic villus
triploidy, which determines two different types of placental pathology: focal and
diffuse partial degeneration. In most cases, however, the diagnosis of a partial
mole is in the case of intrauterine foetal death.
Despite early diagnosis of complete mole, which leads to fewer complications, no
concomitant reduction in the incidence of post-molar gestational trophoblastic
neoplasia (GTN) has been observed [Fowler D. J., et al. (2006)]; approximates
that 10% to 20% of women with a complete molar pregnancy and 0.5% to 11%
with a partial molar pregnancy will continue to develop persistent, invasive
gestational trophoblastic disease, including invasive mole, choriocarcinoma, or
placental trophoblastic tumour.
In case of a suspected diagnosis of molar pregnancy on the basis of medical
history, physical examination, hCG level and ultrasound findings, the physician
should assess the presence of medical complications (anaemia, pre-eclampsia,
hyperthyroidism) which have to be treated.
Key diagnostic and laboratory tests include: complete blood count, complete
metabolic panel, thyroid function test, urine test, chest x-ray, an
electrocardiogram, coagulation status and blood group with rhesus factor.
The case under discussion therefore was positive for the ultrasound and clinical
presentation of complete molar pregnancy diagnosed in the first trimester.
MANAGEMENT
Patients who are diagnosed with molar pregnancy must be evaluated for possible
complications such as: Over-active thyroid, anaemia, and toxaemia of pregnancy.
Patients should have a complete examination and laboratory testing [Lurain, J. R.
(2010)]. After any medical complications have been addressed, a decision must be
made concerning the best method of evacuation.
Maximum dilatation of the cervical canal and aspiration with a 12- to 14-millimeter
cannula under ultrasound control are recommended. As the risk of excessive bleeding
increases with the size of the uterus, it is necessary to provide at least two sacks of
blood preoperative in cases with uterine size >16 gestational weeks.
Drug induction and hysterectomy as proposed by Ngan, H. Y. S., et al. (2003); are
not recommended for termination of molar pregnancy. These methods increase
maternal morbidity, such as excessive blood loss, incomplete evacuation requiring
curettage and the need for cesarean delivery in subsequent pregnancies. Prophylactic
chemotherapy during or immediately after evacuation of molar pregnancy is
associated with a reduction in the incidence of persistent mole from approximately
20% to 3%. Chemotherapy is recommended in high-risk patients (age>40 years,
hCG>100,000 mIU/mL, uterine enlargement, theca luteal cysts >6 cm, medical
complications) and/or when adequate hCG monitoring is not possible.
After termination of molar pregnancy, follow-up is essential for the detection of
trophoblastic disease (invasive mole or choriocarcinoma), which develops in
approximately 15% to 20% of patients with a complete mole and 1% to 5% in a
partial mole. Clinically uterine involution, regression of theca-lutein cysts and
cessation of vaginal bleeding are good prognostic signs.
Indications for treatment of post-molar disease are: plateau of hCG levels within
testing every week for 3 weeks, increase in hCG levels ≥10% with weekly
measurement for 2 weeks, persistently elevated hCG levels 6 months after evacuation,
histopathological diagnosis of choriocarcinoma or trophoblastic tumour or evidence
of metastasis. In all subsequent pregnancies, pathological examination of the placenta
or other products of conception is recommended, as well as monitoring of the hCG
level 6 weeks after birth.
NB: Patients are monitored to prevent the recurrence of benign moles and the
development of malignant neoplasia, which can metastasise to the brain, liver or
lungs. Chest x-rays and the analysis of HCG levels for six months to one year are
necessary]. Recurring moles are treated with methotrexate, a low-level chemotherapy
[Sebire, N. J., and Seckl, M. J. (2008)].
While histological diagnosis remains the gold standard for diagnosis, positive
ultrasound features should raise the index of suspicion in cases where the diagnosis is
doubtful. While histological diagnosis remains the gold standard for diagnosis,
positive ultrasound features should raise the index of suspicion in cases where the
diagnosis is doubtful.
In the first few months of pregnancy, molar pregnancy is associated with a higher
incidence of vaginal bleeding or discharge, abdominal pain and morning sickness.
However, as these symptoms are relatively non-specific, they rarely lead to the
diagnosis being made prior to the routine first ultrasound scan.
In complete molar pregnancy, the ultrasound characteristically shows an absent
gestational sac and a complex echogenic intrauterine mass with cystic spaces.
Complete molar pregnancy is associated with marked cystic changes and mass
formation and is often diagnosed ultrasonographically. However, correct prospective
diagnosis was made more frequently in this study than in older reports, perhaps due to
improved spatial resolution of ultrasonographic equipment.
REFERENCE
INTRODUCTION
Pyometra is an accumulation of large quantities of purulent exudate in the uterus
causing its distention (Hughes et al. 1979). It must be distinguished from the smaller,
intermittent accumulations of fluid that can be detected by ultrasonography in
acute endometritis. It occurs because of interference with natural drainage of fluid
from the uterus, which may be due to cervical adhesions or an abnormally constricted,
tortuous, or irregular cervix. In some cases, the fluid accumulates in the absence of
cervical lesions, presumably due to an impaired ability to eliminate the exudate; due
to some genital tract malignancy, mainly squamous cell carcinoma of the
endometrium, impairment in the natural drainage through cervix due to stenosis or
neoplasms and the consequences of radiotherapy. Other causes are foreign bodies,
puerperal infections or uterine anomalies.
INDICATION
Postmenopausal purulent vaginal discharge.
Date Of Examination: 01 August 2022
PATIENT INFORMATION
EQUIPMENT
Mindray DC-8 Ultrasound machine.
3.5-5MHz curvilinear probe .
Sony High glossy thermal paper.
Ultrasound gel.
Sony Ultrasound Printer.
PATIENT PREPARATION, PATIENT CARE AND PROTOCOL
Standard Gynaecological Transabdominal Scan Protocol documented in appendix A
attached.
COMMENT
The endometrial free fluid collection of volume 44.43cc is suggestive of
haematometra, hydrometra or pyometra. A provisional diagnosis of endometrial
pyometra was made on the basis of the foul smelling purulent fluid vaginal
discharge seen on physical examination.
An echogenic cervical mass confirms the previous Multi-Detector Computed
Tomography (MDCT) diagnosis of cervical carcinoma.
Differential diagnosis: Endometritis, hydrometra or haematometra.
Recommend cervical dilatation under anaesthesia to obtain pus sample for culture
(laboratory tests).
Clinical correlation highly advised.
DISCUSSION
Pyometra in postmenopausal females as postulated by Lui, M. W. et al. (2015), is due
to obstruction in drainage of the uterine cavity or a natural drainage impairment
within the cervix, often attributed to a structural process (e.g. cervical stenosis),
benign or malignant pathology, or secondary to radiotherapy. Additionally, urogenital
anomalies, namely atrophic cervicitis, have reportedly contributed to the disease’s
manifestation.
The main causes are malignant diseases of the genital tract and its treatment like
radiotherapy associated cervical stenosis; senile cervicitis, endometritis, cervical
stenosis after surgery, cervical leiomyoma and congenital cervical anomalies
(Mackowiak, P. A. 2006). Similarly, the diagnosis of pyometra in this case was made
basing on the clinical symptom of foul-smelling vaginal discharge and sonographic
appearance of intrauterine fluid collections. In addition, there was an intrauterine
echogenic cervical mass with sonographic features suggestive of cervical carcinoma
presumably causing obstruction in drainage of the uterine cavity often attributed to a
structural process (e.g. cervical stenosis), secondary to radiotherapy.
MANAGEMENT
Drainage of pus by repeat dilatations, usually under anaesthesia by putting a Foley’s
catheter/drainage tube followed by curettage under antibiotic is the preferred choice
or route for primary treatment. Thus, the appropriate management of patients with
suspected pyometra should comprise cervical dilatation to drain the pus, together with
antibiotics. Performing hysteroscopy in the presence of pyometra is potentially
dangerous and should be contraindicated because the infected material inside the
uterine cavity may disseminate into the peritoneal cavity via the fallopian tube during
hysteroscopy, resulting in peritonitis and septicaemia(Loffer, F. D. 1995).
CONCLUSION
Pyometra is a collection of purulent fluid within the uterine cavity. Cervical stenosis
most frequently involves the internal os. The acquired causes of cervical stenosis
include infection, neoplasia, and iatrogenic factors (radiation therapy or surgery).
Pyometra is an uncommon, but important gynaecologic condition, because the
incidence of the association with malignant disease is considerable, and spontaneous
rupture can result in significant morbidity and mortality. Dilatation of the cervix and
pus drainage is the treatment of choice, and it is important to rule out the possibility of
cancer and differentiate the malignancy.
Ultrasound has significant clinical utility and Doppler imaging is also beneficial,
particularly in evaluating blood flow changes associated with an inter-current
endometrial cancer. In persistent cases of pyometra, repeat drainage is indicated;
conversely, if the condition is intractable, definitive surgical management is
recommended, particularly when conservative measures have been exhausted or an
underlying malignancy cannot be excluded. Finally, routine surveillance is warranted
to promptly detect or avert substantial haemorrhaging, uterine rupture and peritonitis,
all of which may significantly increase the incidence of patient morbidity and
mortality.
REFERENCES:
INTRODUCTION
The aetiology of this syndrome remains largely unknown, but mounting evidence
suggests that PCOS might be a complex multigenic disorder with strong epigenetic
and environmental influences, including diet and lifestyle factors. It is frequently
associated with abdominal adiposity, insulin resistance, obesity, metabolic disorders
and cardiovascular risk factors. PCOS is defined by a combination of signs and
symptoms of androgen excess and ovarian dysfunction in the absence of other specific
diagnoses. The principal features are obesity, irregular or absence of menstruation,
acne, difficulty in conceiving, excessive amounts of male hormones and excessive
hair growth.
The diagnosis and treatment of PCOS are not complicated, requiring only the
judicious application of a few well-standardized diagnostic methods and appropriate
therapeutic approaches addressing hyperandrogenism, the consequences of ovarian
dysfunction and the associated metabolic disorders. Accordingly, guidelines from the
Endocrine Society recommend using the Rotterdam Criteria for the diagnosis of
PCOS. The Rotterdam Criteria mandate the presence of 2 of the following three
findings: hyperandrogenism-(either clinically by skin manifestations of androgen
excess or hyperandrogenemia - high testosterone in a blood test), ovulatory
dysfunction - (oligo / anovulation), and polycystic ovaries on ultrasound; plus the
exclusion of other diagnoses that could result in hyperandrogenism or ovulatory
dysfunction such as congenital adrenal hyperplasia (CAH), androgen-secreting
tumours, Cushing syndrome, thyroid dysfunction, and hyperprolactinemia.
Case Presentation: A 24 year old morbidly obese married black African lady of Para
0 Gravida 0 aborta 0 presented to the Ultrasound Department for a pelvic
examination to rule out polycystic ovaries. Her history revealed that she was not
having a period for the last six months and had irregular menses since menarche. Her
menarche was at 13 years and her periods have been irregular since then. The patient
stated that during her adolescence, her periods would vary with change of
environment and that the last time she had a period she had consulted a faith healer
who gave her some Holy water. She only had a period for two months and since then,
she assumed to be pregnant since she had missed her periods. She also has been trying
to conceive for the last year and a half without success. She has noticed a significant
weight gain (98 kg) over the last few months or so and was convinced she was
pregnant even though all pregnancy tests have come back negative.
She denied any change in her voice or increase in the size of her muscles. She has
been morbidly obese since she was a young teenager. She denied any headaches,
blurred vision, or discharge from her nipples. She also denied any hyper/hypothyroid
symptoms. She has never had any surgery and has never conceived, despite several
years of trying. She is not currently taking any medication and has never used any
form of contraception.
INDICATION
Pelvic examination to rule out polycystic ovaries and evaluation of irregular menses.
Date Of Examination: 07 September 2022
PATIENT INFORMATION
EQUIPMENT
Mindray DP 50 Ultrasound machine.
3.5-5MHz curvilinear probe .
Sony High glossy thermal paper.
Ultrasound gel.
Sony Ultrasound Printer.
DISCUSSION
Polycystic ovarian syndrome (PCOS) is a common endocrinopathy with many clinical
manifestations. The effects on women’s lives start at puberty and can last throughout
her lifetime. Women frequently experience anovulatory menstrual cycles, infertility,
hirsutism, obesity and increased risk of diabetes mellitus, hypertension, lipid
abnormalities, and metabolic syndrome. PCOS is a heterogeneous disorder, and a
diagnosis of exclusion. In general, women afflicted will have menstrual irregularities,
ultrasound findings of abnormal ovarian size and morphology, and clinical or
laboratory evidence of hyperandrogenism.
While there are a number of definitions of PCOS, the Rotterdam consensus is the
most widely accepted across Europe, Asia and Australia and was the definition used
for the guideline. It encompasses the National Institutes of Health definition, which
generally describes women with a more severe form of PCOS and requires the
presence of both hyperandrogenism and oligo/anovulation. The Rotterdam Criteria
require the presence of two of the following: oligo/anovulation, hyperandrogenism or
polycystic ovaries on ultrasound; (Revised 2003 consensus on diagnostic criteria). In
this regard, it is therefore paramount to note that other aetiologies must be excluded
such as congenital adrenal hyperplasia, androgen secreting tumours, Cushing
syndrome, thyroid dysfunction and hyperprolactinaemia. Based on the Rotterdam
Criteria, the patient in this scenario would be diagnosed with PCOS as the ultrasound,
and clinical features of the disorder were present.
Pathophysiology
The pathophysiology of PCOS encompasses inherent ovarian dysfunction that is
strongly influenced by external factors, such as disturbances of the hypothalamic-
pituitary-ovarian axis and hyperinsulinaemia. Exaggerated gonadotrophin releasing
hormone (GnRH) pulsatility results in hypersecretion of luteinising hormone (LH),
which has effects both on ovarian androgen production and oocyte development.
Disturbed ovarian-pituitary and hypothalamic feedback accentuates the gonadotrophin
abnormalities. Hyperinsulinaemia is secondary both to insulin resistance at the
periphery and to abnormal pancreatic beta cell function. PCOS runs in families and a
number of genetic abnormalities appear to result in features of the syndrome and
account for the heterogeneity of the symptoms. Environmental influences, such as
nutrition and lifestyle, further influence expression of the syndrome. No one factor
fully accounts for PCOS abnormalities; thus in the presenting case, although it is an
abnormality of both the reproductive and endocrine (metabolic) systems; the patient’s
disorder can be attributed to insulins resistance/ hyperinsulinemis, disorders of
luteinizing hormone/follicle stimulating hormone release, decrease in sex hormone-
binding globulin (SHBG) production, increased ovarian androgen production which
all components can lead to anovulation causing PCOS.
Androgen excess enhances the initial recruitment of primordial follicles into the
growth pool. Simultaneously, it initiates premature luteinisation, which impairs the
selection of the dominant follicle. This results in classical PCOS histopathologic and
gross anatomic changes that constitute Polycystic Ovarian Morphology (PCOM).
PCOS is perpetuated by increased LH, but it is not caused by it. LH excess is common
and is necessary for the expression of gonadal steroidogenic enzymes and sex
hormone secretion but is less likely to be the primary cause of ovarian androgen
excess because of LH-induced desensitization of theca cells.
Abundant literature note that nearly one-half of patients with functional ovarian
hyperandrogenism have an abnormal degree of insulin-resistant hyperinsulinism,
which acts on theca cell, increasing steroidogenesis and prematurely luteinises
granulosa cells, and stimulates fat accumulation. Hyperandrogenemia provokes LH
excess, which then acts on both theca and luteinised granulosa sustaining cycle.
Evaluation
Most society guidelines have accepted that diagnosis of PCOS; most meet two out of
three criteria: chronic anovulation, clinical or biological hyperandrogenism, and
polycystic ovaries morphology in the absence of any other pathology. These clinical
features are part of the Rotterdam Criteria. The National Institute of Health criteria
also requires clinical or biochemical hyperandrogenism and oligo or anovulation. The
American Excess PCOS Society requires hyperandrogenism with one of two of the
remaining criteria.
Xie, J., et., al; (2018); asserts that the disorders mimicking the clinical features of
PCOS should be excluded. These include thyroid disease, hyperprolactinemia, and
non-classic congenital adrenal hyperplasia with 21-hydroxylase deficiency, for which
measurement of serum 17-hydroxyprogesterone (17-OHP) should be done, which
may require further testing with adrenocorticotropin stimulation test.
Chronic Anovulation: The cycle length of more 35 days suggest chronic
anovulation, but cycle length between 32 to 35-36 day needs to be assessed for
ovulatory dysfunction. The threshold for oligomenorrhea is 35 days cycles in adults
and 40 days in adolescents. A patient with cycles shorter than 35 days can be assessed
by measuring progesterone levels in the mid-luteal phase (days 20 to 21). Implications
of ovulatory dysfunction include infertility, endometrial hyperplasia, and endometrial
cancer. In the presenting case the patient had worries with infertility since her
menstrual history since menarche was sporadic and irregular and then, she had been
trying to conceive for the more than a year without success.
Hirsutism is defined as coarse, dark, terminal hairs distributed in a male pattern. Signs
of virilization such as increased muscle mass, decreased breast size, deepening of the
voice, and clitoromegaly are not typical of PCOS. Virilization reflects higher
androgen levels, and further investigation should be done; the clinician should have
higher suspicion for an androgen-producing tumour of the ovary or the adrenal gland.
Free testosterone levels are more sensitive than the measurement of total testosterone
for establishing the existence of androgen excess.
The patient in this case denied any change in her voice or increase in the size of her
muscles; any headaches, blurred vision, or discharge from her nipples. She also
denied any hyper/hypothyroid symptoms. She has never had any surgery and has
never conceived, despite several years of trying. She is not currently taking any
medication and has never used any form of contraception. On examination, she was
clearly not hirsute (Ferriman-Gallowey score of 0), especially in the chin and mid
abdominal regions and had no evidence for clitoromegaly.
Polycystic Ovaries Morphology: Ovarian morphology assessment is more accurate
when done by transvaginal ultrasound. New ultrasound machines allow the diagnosis
of PCOM in patients having at least 25 small follicles (2 mm to 9 mm) in the whole
ovary. Ovarian size at 10 ml remains the normal size cut-off. Rotterdam criteria
indicate PCOM by the presence of at least 12 follicles measuring 2 mm to 9 mm in
the whole ovary or increased ovarian size more than 10 ml. Ultrasound technology
has advanced and can improve the diagnosis of PCOS. In the current scenario, the
patient’s transabdominal ultrasound revealed bilateral enlargement of both ovaries
with numerous small similar sized and peripherally distributed anechoic follicles
without a dominant follicle and relatively echogenic right ovarian stroma; giving
sonographic appearance of both ovaries consistent with polycystic ovarian
morphology.
Characteristics of PCOS according to the assertion of (McCance & Huether, 2019),
usually present during puberty and include obesity, menstrual disturbances,
oligomenorrhea, amenorrhoea, hyperandrogenism, infertility, and some women
maybe asymptomatic. The majority of these PCOS features were present in the
patient in question. Other manifestations of PCOS which may be excluded as the
guidelines of Revised 2003 consensus on diagnostic criteria like cardiovascular
disease hypertension, dyslipidemia, diabetes mellitus and hormones disturbances such
as increases in LH, insulin, androgens and prolactin were not proven by the laboratory
test results for this patient by the time the report was produced. Nonetheless, a
diagnosis of the patient’s disorder was already made based in the diagnostic criteria.
Management
Management of PCOS requires identification and management of current symptoms,
attention to fertility and emotional concerns, as well as preventive activities to
minimise the risk of future associated health problems. The national guideline
highlights the key role of obesity in PCOS. Studies consistently show a higher
prevalence of PCOS in women who are overweight and obese, and up to 30% of s
women who had a body mass index (BMI) >30 kg/m2 met PCOS diagnostic criteria
(Boyle, J. A,. et al 2012). Women with PCOS also have a higher rate of weight gain
than those without PCOS – about 1–2 kg/year.7 A lifestyle program that addresses a
healthy diet with caloric restriction, behaviour change support and exercise to aid in
weight loss and prevention of future weight gain is the best first line treatment for
PCOS.4 Even a small amount of weight loss (5%) can help restore menstrual cycle
regularity and ovulation, assist mental wellbeing, halve the risk of diabetes in high
risk groups and help prevent future cardiometabolic risk.8–11
No evidence supports any particular exercise regimen as best for women with PCOS.
General recommendations include 150 minutes of exercise weekly with 90 minutes of
this exercise being aerobic activity at moderate to high intensity.4 Lifestyle with diet
and exercise should always be a core part of management in addition to other
treatment measures. Health coaching principles with appropriate education, risk
perception and patient driven goal setting may assist with motivation and support in
behaviour change. A team approach may also be useful. Anxiety, depression and body
image disorders may also impact on the woman’s ability to take-up lifestyle advice
and these should also be addressed.4
Reference
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McCance, S. & Huether, S.E. (2019). Patholophysiology: The biologic basis for
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Sala Elpidio LN, de Alencar JB, Tsuneto PY, Alves HV, Trento Toretta M, It Taura
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Shorakae S, Ranasinha S, Abell S, Lambert G, Lambert E, de Courten B, Teede H.
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