Reversed intestinal rotation associated with anomalous mesenteric venous drainage. Report of a case.

Reverse intestinal rotation is a congenital abnormality of midgut rotation. Mesenteric arterial, venous, and lymphatic compression may occur, but associated anomalous mesenteric venous drainage is extremely rare. The case presented illustrates the importance of recognition of intestinal malrotation and the danger of bowel resection in the presence of anomalous mesenteric venous drainage.