Colo-colic intussusception associated with Henoch-Schönlein purpura in adults.

Henoch-Schönlein purpura (HSP) is often seen in childhood and is a self-limiting illness, and complication with intussusception is rare in adults. The case is reported of a 74-year-old man who was diagnosed with intussusception with HSP by ultrasonography on day of admission. Conservative therapy was started. However, his abdominal symptoms worsened, so he underwent laparotomy 3 days after admission. Histological study of the resected specimens demonstrated necrosis in the intussuscepted colon induced by HSP vasculitis. Bowel necrosis with intussusception in adult HSP is rare and might easily be overlooked. Thus special attention should be paid to gastrointestinal manifestations and, in an abdominal emergency, timely surgical intervention is life-saving.