A CASE OF RETROPERITONEAL PSEUDOCYST FILLED WITH NECROTIC MATERIAL

Abstract

A 54-year-old woman was hospitalized for the management of diabetes mellitus. A solid mass was felt in the left upper quadrant at an abdominal examination. An abdominal scout film and excretory urography showed a grape-fruit sized mass unrelated to the urinary tract. The tumor removed was 7×6×8.5cm in size, and 240g in weight. The content of the tumor was gray necrotic material. The histology revealed a fibrous capsule and degenerative material containing cholesterin cyrstals. To our knowledge this kind of retroperitoneal pseudocyst has never been reported before.