This ovary is dark and enlarged from hemorrhage following torsion. Torsion of the ovary is uncommon but may occur in adults in conjunction with benign ovarian cysts or neoplasms and in children or infants spontaneously. It leads to a presentation like that of acute appendicitis, but an adnexal mass may be palpable. The disruption of the blood supply results in hemorrhagic infarction.

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