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OG29.1,OG31.1,OG32.1-2,OG34.6 | Benign Gynaecology — Graded Quiz
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A 40-year-old nulliparous woman with a known fibroid uterus on long-term oral iron therapy attends with persistent heavy menstrual bleeding despite 6 months of medical management with tranexamic acid and NSAIDs. Her haemoglobin is 7.8 g/dL. Hysteroscopy reveals a 3.5 cm type 1 submucous fibroid. Which is the most appropriate definitive management?
Correct. A submucous fibroid (FIGO type 1, <50% intramural extension) causing symptomatic menorrhagia refractory to medical management in a nulliparous woman is best treated by hysteroscopic myomectomy. This preserves uterine function, is minimally invasive, and directly addresses the intracavitary component causing bleeding. UAE is relatively contraindicated in women desiring future pregnancy. Abdominal myomectomy is indicated for intramural/subserous fibroids not accessible hysteroscopically.
The FIGO subclassification directly guides the operative approach: submucous fibroids (types 0–2) = hysteroscopic route; types 3–5 intramural = abdominal/laparoscopic myomectomy; types 6–7 subserous = laparoscopic.
FIGO types 0, 1, and 2 (submucous) are amenable to hysteroscopic resection. Medical therapy has already failed. UAE carries risks to ovarian reserve and uterine perfusion post-procedure — not preferred in nulliparous women wanting future fertility.
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A 44-year-old woman presents with a rapidly enlarging uterine mass over 3 months, associated with irregular bleeding. She has no prior fibroid diagnosis. Which finding would most raise suspicion for uterine sarcoma rather than a benign fibroid?
Correct. Rapid enlargement, ill-defined margins on MRI, and central necrosis are red-flag features for uterine sarcoma (especially leiomyosarcoma). Calcification suggests long-standing, likely benign fibroid. Size alone or number alone does not distinguish sarcoma from fibroid; it is the rapid growth pattern and MRI characteristics that raise concern.
Sarcomatous change in a fibroid is rare (<0.5%) but must be considered when growth is rapid, particularly in post-menopausal women. MRI is the preferred imaging modality to characterise concerning features before surgery.
Rapid growth, irregular margins on MRI, and central necrosis are the key discriminating features pointing to sarcoma. Calcification in a fibroid is a feature of long-standing benign disease. Size alone is unreliable — very large fibroids can be benign.
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A 65-year-old woman with procidentia (complete uterovaginal prolapse) is found to have significant hypertension, diabetes, and chronic kidney disease. She declines surgery. Which is the most appropriate initial non-surgical management?
Correct. For a medically unfit woman with complete prolapse who declines surgery, a ring pessary is the primary non-surgical management. Adding local oestrogen cream improves vaginal atrophy, reduces discharge and ulceration, and facilitates long-term pessary use. Pelvic floor exercises alone are insufficient for complete prolapse. Watchful waiting is inappropriate given the severity.
Ring pessaries work best for Stage II–III prolapse; shelf or Gellhorn pessaries may be needed for complete prolapse. Regular follow-up every 4–6 months for pessary cleaning and vaginal inspection is mandatory to prevent erosion.
Complete prolapse (procidentia) is beyond the scope of pelvic floor exercises alone. Ring pessary with adjunct topical oestrogen is the evidence-based conservative approach for women who are unfit for or decline surgery.
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A 52-year-old multiparous woman with Stage III uterovaginal prolapse is being counselled about surgical repair. She has completed her family. Which procedure addresses both uterine prolapse and associated anterior vaginal wall (cystocele) defect in a single operation most definitively?
Correct. Vaginal hysterectomy with anterior colporrhaphy (for cystocele repair) and posterior colpoperineorrhaphy (for rectocele/perineal laxity) is the standard comprehensive repair for uterovaginal prolapse in a woman who has completed her family. Manchester operation is uterus-conserving (cervical amputation) — appropriate for younger women desiring uterine preservation.
The Manchester-Fothergill (cervical amputation + anterior repair) is the uterus-preserving alternative — important distinction from vaginal hysterectomy when the patient wishes to preserve the uterus.
Vaginal hysterectomy + anterior + posterior repair addresses all compartments. Manchester operation is for women who want uterine preservation (and may still desire pregnancy). Anterior colporrhaphy alone addresses only the cystocele.
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A 53-year-old woman, 2 years post-menopause, presents with severe vasomotor symptoms and urogenital atrophy significantly affecting her quality of life. Her mother had breast cancer at 62. She has no personal history of breast cancer, VTE, liver disease, or cardiovascular disease. What is the most appropriate management?
Correct. A family history of breast cancer in a first-degree relative is NOT an absolute contraindication to HRT; it is a factor that requires careful individual risk-benefit counselling. HRT remains the most effective treatment for vasomotor symptoms. The decision should be shared, documented, and reviewed annually. The WHI data showed risk is time-limited, duration-dependent, and small in absolute terms (particularly for oestrogen-only HRT).
HRT risk-benefit discussion must include the 'timing hypothesis': starting within 10 years of menopause or age <60 ('early window') appears cardioprotective. The absolute risk increase in breast cancer from combined HRT is small (approximately +8 per 10,000 women/year with combined therapy for 5 years).
Family history alone does not prohibit HRT — it necessitates counselling. Absolute contraindications are: personal history of oestrogen-sensitive breast cancer, active VTE or thrombophilia, active liver disease, undiagnosed vaginal bleeding, recent MI/stroke.
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A 68-year-old woman, 18 years post-menopause, is on long-term bisphosphonate therapy for osteoporosis. She presents with two episodes of vaginal bleeding in the last month. TVS shows 8 mm endometrial thickness. Endometrial sampling returns showing complex atypical hyperplasia. According to FIGO 2009, if endometrial carcinoma is confirmed, which stage is assigned when disease is confined to the myometrium, invading less than half its thickness?
Correct. FIGO 2009 endometrial carcinoma staging: Stage IA = disease confined to the uterus with <50% myometrial invasion; Stage IB = disease confined to the uterus with ≥50% myometrial invasion; Stage II = cervical stromal invasion; Stage IIIA = serosa/adnexa. Surgical staging is mandatory for endometrial carcinoma.
Endometrial carcinoma uses FIGO 2009 surgical staging. Do NOT confuse with cervical (clinical 2018) or ovarian staging systems. Depth of myometrial invasion is the key Stage I distinction.
FIGO 2009 endometrial staging: IA (<50% myometrial invasion), IB (≥50%), II (cervical stroma), IIIA (adnexa/serosa), IIIB (vagina/parametria), IIIC (regional nodes), IV (bladder/bowel or distant). Remember this is a SURGICAL staging system.
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A 26-year-old woman presents with 5 years of progressively worsening pelvic pain, dysmenorrhoea, and deep dyspareunia. Examination reveals a 4 cm left adnexal mass with restricted uterine mobility. Transvaginal ultrasound shows a 4 cm left ovarian cyst with homogeneous low-level echoes (ground-glass appearance). Which is the most likely diagnosis?
Correct. The combination of progressive dysmenorrhoea, dyspareunia, restricted uterine mobility (suggesting adhesions), and a cyst with homogeneous low-level 'ground-glass' echoes on TVS is classic for an endometrioma (chocolate cyst). The ovary is the most common site for endometriosis. Functional cysts resolve spontaneously; dermoids have heterogeneous content with bright reflectors; serous cysts are unilocular with anechoic content.
TVS is the first-line investigation for suspected endometrioma (sensitivity ~93%, specificity ~97% for the ground-glass pattern). However, laparoscopy with biopsy remains the gold standard for diagnosis of all forms of endometriosis.
Ground-glass (homogeneous low-level echoes) on TVS in the context of dysmenorrhoea + dyspareunia + restricted uterine mobility = endometrioma. Dermoids show characteristic bright reflectors (hair, fat). Functional cysts are thin-walled, simple, and transient.
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A 30-year-old woman with rASRM stage III endometriosis (confirmed laparoscopically) wishes to conceive. She has been trying for 18 months without success. Which is the most appropriate initial management for her infertility?
Correct. For endometriosis-associated infertility, GnRH analogues do NOT improve fertility — they delay conception by suppressing the cycle. Laparoscopic surgical treatment (excision/ablation of implants, adhesiolysis, cystectomy for endometriomas) improves spontaneous pregnancy rates in stage III/IV disease. Assisted reproduction (IUI/IVF) is the next step if surgery does not result in conception.
Key rule for endometriosis and fertility: medical therapy = no fertility benefit (delays conception); surgical therapy (laparoscopic) = improved pregnancy rates especially in stage III/IV. For poor responders or bilateral endometriomas, IVF is next.
GnRH analogues suppress symptoms but do not improve fertility outcomes and delay natural conception. COCP is contraceptive. Expectant management at 18 months of sub-fertility with stage III disease is not appropriate. Surgery is the evidence-based first step.
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A 36-year-old woman undergoes myomectomy for a 6 cm intramural fibroid. Three days post-operatively, she develops fever (38.8°C), uterine tenderness, and purulent vaginal discharge. Blood cultures are sent. Which organism is most commonly implicated in post-myomectomy uterine infection?
Correct. Post-operative uterine infections (endometritis/endomyometritis) following pelvic surgery are typically polymicrobial, involving mixed anaerobes (Bacteroides, Peptostreptococcus) and aerobic Gram-negative organisms (E. coli, Klebsiella). This pattern reflects normal vaginal flora ascending post-surgery and guides empirical broad-spectrum antibiotic choice (e.g., metronidazole + cephalosporin or amoxicillin-clavulanate).
Empirical antibiotic coverage for post-operative endometritis targets both anaerobes and Gram-negatives. Prevention: pre-operative prophylactic antibiotics (cefazolin) reduce post-myomectomy infection significantly.
Post-operative pelvic infection is almost always polymicrobial — mixed anaerobes + Gram-negative aerobes reflecting vaginal flora. Monobacterial infections are the exception, not the rule.
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A 45-year-old woman with moderate (Stage II) uterine prolapse complains of a dragging pelvic sensation and stress urinary incontinence. She is also complaining of voiding difficulty. Urodynamics are performed pre-operatively. Which finding on urodynamics would be the most important to identify before proceeding to prolapse repair?
Correct. The critical finding to identify on pre-operative urodynamics is occult (masked) stress urinary incontinence. The prolapsed uterus can kink the urethra, masking SUI. When prolapse is repaired and the kink is relieved, SUI is unmasked in up to 40% of cases. Identifying this pre-operatively allows a concurrent continence procedure (e.g., mid-urethral sling) to be planned.
The 'pessary-surgery decision hinge': always perform urodynamics (or a pessary trial with re-assessment of continence) before prolapse repair to avoid unmasking SUI post-operatively. Up to 40% of prolapse patients have occult SUI.
The critical reason for pre-surgical urodynamics is specifically to unmask occult SUI, which the prolapse is mechanically compressing/kinked. PVR of 60 mL is not clinically significant. Detrusor overactivity requires anticholinergic treatment but is less critical to identify pre-operatively than occult SUI.
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A 62-year-old woman with post-menopausal bleeding undergoes hysteroscopy and endometrial biopsy. Histology returns as endometrial carcinoma, Type II (serous papillary). Compared to Type I endometrial carcinoma, which statement best describes Type II?
Correct. Type II endometrial carcinoma (serous papillary, clear-cell carcinoma) is oestrogen-independent, arises in atrophic endometrium (not hyperplasia), is associated with TP53 mutations, and has a significantly worse prognosis than Type I. Type I (endometrioid) is oestrogen-driven, arises from hyperplasia, is associated with PCOS/obesity/unopposed oestrogen, and responds to progestogens. Type I is far more common (~80%).
The dualistic model of endometrial carcinoma is a key classification: Type I (oestrogen-driven, low grade, good prognosis) vs Type II (non-oestrogen, high grade, poor prognosis). Type II requires more aggressive surgical staging.
Type I = oestrogen-driven, endometrioid, good prognosis, PCOS/obesity risk, PTEN/microsatellite instability mutations. Type II = oestrogen-independent, serous/clear-cell, poor prognosis, TP53 mutations, arises in atrophic endometrium.
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A 33-year-old woman with a confirmed diagnosis of adenomyosis presents with an 18-month history of subfertility and menorrhagia. She is currently trying to conceive. Which treatment option is most appropriate to manage her symptoms while preserving her fertility?
Correct. In a woman with adenomyosis-related subfertility who desires pregnancy, GnRH analogues for 3–6 months suppress the disease, reduce uterine volume, and improve the endometrial environment. This pre-treatment is followed by assisted reproduction (IVF/IUI) since the underlying condition compromises natural fertility. LNG-IUS is contraceptive. COCP is contraceptive. Hysterectomy is the definitive but fertility-ending treatment.
Adenomyosis impairs fertility by disrupting the endometrial-myometrial junction, impairing implantation. GnRH analogue downregulation before IVF improves outcomes in adenomyosis patients compared to no pre-treatment.
In fertility-seeking women with adenomyosis, GnRH analogue pre-treatment + IVF is the evidence-based approach. LNG-IUS is excellent for symptom control but prevents pregnancy. COCP is both contraceptive and only transiently suppressive.
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