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[Invagination of the ileum as the etiology of acute abdomen in adults].

In contrast to children, intussusception is an unusual cause of an abdominal emergency in adults. We report on a 65-year-old patient who complained of inconstant crampy abdominal pain for a period of over 6 months. He was admitted to our hospital because of acute intestinal obstruction. Sonography and computer tomography suggested an intussusception. At surgery the diagnosis of an ileo-ileal invagination was confirmed and resection of a segment of the ileum was performed. As shown by macroscopic findings intussusception had existed for several days. Histologically, the underlying disease causing the intussusception was a leiomyoma arising from the submucosa.