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Ovarian torsion — RCPSC EM MCQ

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ModerateOB/GYN emergenciesOvarian torsionRCPSC EM

CTAS 2: A 29-year-old has sudden unilateral pelvic pain with vomiting. Vitals are BP 118/72, HR 104, afebrile. Pregnancy test is negative. Pelvic exam shows right adnexal tenderness; ultrasound shows an enlarged ovary with peripheral follicles and reduced venous flow. What is the most likely diagnosis?

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Correct answer: D — Ovarian torsion

Sudden unilateral pelvic pain with vomiting and enlarged ovary with abnormal flow is ovarian torsion. Surgical detorsion should not be delayed for perfect imaging.

Reference: SOGC adnexal torsion principles; Canadian gynaecology emergency practice