A primary ovarian pregnancy with a contralateral ruptured corpus luteum: a case report.

A primary ovarian pregnancy is one of the rarest varieties of ectopic pregnancies. The conditions which are most commonly confused with an ovarian pregnancy are, a ruptured corpus luteal cyst, a haemorrhagic corpus luteum and a ruptured endometriotic cyst. This case presents the clinical and the histological findings of a ruptured ovarian pregnancy, along with a ruptured corpus luteal cyst in the contralateral ovary.