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Polycystic ovary syndrome — DRCOG MCQ

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HardGynaecologyPolycystic ovary syndromeDRCOG

A 22-year-old woman has irregular periods, acne and increased facial hair. BMI is 32 kg/m². Pregnancy test is negative, TSH and prolactin are normal, and pelvic ultrasound shows polycystic ovarian morphology. What is the most likely diagnosis?

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Correct answer: C — Polycystic ovary syndrome

Oligomenorrhoea, clinical hyperandrogenism and polycystic ovarian morphology support PCOS after excluding common mimics. An androgen-secreting tumour is more likely with rapid virilisation or very high androgen levels. The pearl is that PCOS is a clinical-endocrine syndrome, not just an ultrasound finding.

Reference: NICE CKS Polycystic ovary syndrome; International PCOS guideline