Ovarian torsion pathophysiology

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

In general, ovarian torsion occurs in association with an enlarged ovary . Because ovarian enlargement plays a critical role, 50% to 60% of cases of ovarian torsion are due to either benign or malignant ovarian tumors, usually over 4 cm in size. An enlarged ovary that occurs in early pregnancy due to enlargement of the corpus luteum can also predispose a woman to ovarian torsion. Likewise women undergoing fertility treatment who develop theca lutein cysts are at risk of ovarian torsion. Ovarian torsion can occur in children if a long fallopian tube is present.

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