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O&G VivasGynaecological health — menstrual disorders

O&G Vivas · Gynaecological health — menstrual disorders

Adenomyosis — structured oral station (12 minutes)

FRANZCOG oral-format station on adenomyosis: candidate defines the condition and places it in FIGO PALM-COEIN, lists the MUSA TVS features and the MRI junctional-zone threshold, runs the differential against fibroids and endometriosis, and defends the LNG-IUS-first to hysterectomy-endpoint ladder. Scored against the eight published RANZCOG oral domains.

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FRANZCOGMRCOGABOG
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Target exams

FRANZCOGMRCOGABOG
Prompt
You are the gynaecology registrar in clinic. A 43-year-old multiparous woman presents with progressively heavier, more painful periods, deep dyspareunia, and a tender, boggy, globally enlarged uterus on bimanual examination. The examiner will ask you to define the diagnosis, justify your imaging, defend your management ladder, and counsel on fertility. You may be shown a transvaginal ultrasound image.

Station format

4 minutes reading, 12 minutes examination, 20 marks, global scoring. The eight published RANZCOG oral domains apply to every station: history and examination; investigations and interpreting results; treatment and management; clinical knowledge; complex, urgent or unusual clinical presentations; rapport with patient, support person or colleague; respect; communication skills. You are marked on how you behave, not only what you know. [1]

Reveal the examiner script and model responsesShowHide

Opening prompt — "What is the most likely diagnosis and where does it sit in the FIGO classification?"

Model response — definition and classification: [1]

  • "Her history of progressively heavier and more painful periods, deep dyspareunia and a tender, boggy, globally enlarged uterus is the classic triad of adenomyosis."
  • "Adenomyosis is endometrial glands and stroma within the myometrium with adjacent smooth-muscle hyperplasia. It is the A of FIGO PALM-COEIN — a structural cause (AUB-A)."[1]

Probe 1 — "How do you confirm the diagnosis non-invasively?"

  • "Transvaginal ultrasound first, using the MUSA-consensus features: a globular uterus, asymmetrical myometrial thickening with the posterior wall classically thicker, myometrial cysts, hypoechogenic islands, fan-shaped shadowing, linear striations and an irregular endomyometrial junction."
  • "MRI is second-line, for problem-solving — when fibroids coexist and obscure the picture, or before fertility-sparing surgery. The threshold is a junctional-zone thickness of at least 12 mm on T2-weighted MRI (Reinhold)."
  • "Pooled accuracy is TVUS about 72 percent sensitive and MRI about 77 percent (Champaneria)."[2][3]

Probe 2 — "Her TVUS shows coexisting fibroids. Does that change your approach?"

  • "It doesn't change the diagnosis but it does remind me of the coexistence trap. Adenomyosis, fibroids and endometriosis frequently coexist, and finding one lesion does not finish the case."
  • "I quantify the burden of each — the FIGO location of the fibroids decides whether a fibroid is the bleeder (submucous, LSM, bleed most), and I finish the PALM-COEIN workup before operating."[1]

Probe 3 — "She has completed her family. What is your management?"

  • "First-line is the levonorgestrel intrauterine system (LNG-IUS) — a 2025 systematic review of 28 studies confirms it improves dysmenorrhoea, bleeding, uterine volume, endometrial thickness and quality of life."
  • "If response is incomplete I add a GnRH analogue with add-back or dienogest. If medical therapy fails, hysterectomy is the definitive cure — symptoms resolve completely."
  • "She is not a candidate for fertility-sparing surgery; she is a candidate for definitive hysterectomy if medical therapy fails."[4]

Probe 4 — "She is worried she will need a hysterectomy. What do you say?"

This is a scored communication domain — demonstrate it out loud: [4]

  • Move to her eye level, use her name, acknowledge the fear: "Most women with adenomyosis do well on the LNG-IUS — many avoid surgery entirely. We start there and reassess in three to six months. Hysterectomy is the backstop, not the starting point."
  • Offer a clear plan, timeline and a named contact for between visits.[4]

Probe 5 — "How would your approach differ in a 32-year-old seeking fertility?"

  • "In a woman seeking fertility, I counsel on the adverse obstetric outcomes (miscarriage, preterm birth, fetal-growth restriction), and I prioritise medical suppression (LNG-IUS, dienogest) before ART."
  • "Fertility-sparing surgery (adenomyomectomy) is an option for focal disease — pooled pregnancy rate about 50 percent — but it carries recurrence and uterine-rupture risk and is not first-line."[4]
Obstetrics & Gynaecology Pro

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You have read the opening of this viva. The complete unit — every section and its primary-source references — is part of the Obstetrics & Gynaecology fellowship library.

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References4ShowHide
  1. [1]Munro MG, Critchley HO, Broder MS, et al. FIGO classification system (PALM-COEIN) for causes of abnormal uterine bleeding in nongravid women of reproductive age. Int J Gynaecol Obstet, 2011.PMID 21345435
  2. [2]Van den Bosch T, Dueholm M, Leone FP, et al. Terms, definitions and measurements to describe sonographic features of myometrium and uterine masses: a consensus opinion from the Morphological Uterus Sonographic Assessment (MUSA) group. Ultrasound Obstet Gynecol, 2015.PMID 25652685
  3. [3]Reinhold C, McCarthy S, Bret PM, et al. Diffuse adenomyosis: comparison of endovaginal US and MR imaging with histopathologic correlation. Radiology, 1996.PMID 8633139
  4. [4]Zhang B, Shi J, Gu Z, et al. The role of different LNG-IUS therapies in the management of adenomyosis: a systematic review and meta-analysis. Reprod Biol Endocrinol, 2025.PMID 39948612
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