Separate sac of peritoneum: A case of an unusual cause of intestinal obstruction

Internal hernia is a rare condition. These hernias are classified in differ ent categories, depending on the location of its orifice. It should be cons idered in cases of acute intestinal obstruction, particularly in the absenc e of an external hernia or in the absence of history of previous abdominal surgery. The authors report a unique case of obstruction of the small bowel , that was almost entirely wrapped in a separate peritoneal sac. (Am J Gast roenterol 1999;94:518-519, (C) 1999 by Am. Coll. of Gastroenterology).