Adenocarcinoma with peritoneal dissemination secondary to multiple mature teratomas of the omentum.

Background: Teratomas of the greater omentum are rare. In most cases, they are composed of mature tissue elements and behave clinically in a benign fashion.

Case: A 62-year-old woman with a history of bilateral salpingo-oophorectomy due to ectopic pregnancy was found to have multiple cystic teratomas of the omentum.

Localized necrotizing angiitis of the ileum.

A 20-year-old woman was hospitalized repeatedly because of intermittent bouts of intestinal obstruction and the symptoms usually improved with conservative treatments. One year after the first admission the patient was hospitalized in emergency and a laparotomy revealed a circular stricture with a pinhole perforation in the ileum. Histological sections of the stricture showed the characteristic features of microscopic polyangiitis varying from active to resolving stages, which were localized in the ileum.