Spontaneous rupture of pyometra manifesting as an acute abdomen: a case report.

Spontaneous perforation of pyometra is a rare entity with a reported incidence in the range of 0.01-0.05%. The clinical picture is similar to peritonitis arising from intestinal perforation and commonly the correct diagnosis is only made perioperatively. We report a case in an elderly postmenopausal woman presenting with an acute abdomen.