We report a case of the intestinal lesion in Henoch-Schönlein purpura, presented with an acute abdomen in a 4 year old boy. Five days after sudden colicky abdominal pain, skin purpura and painful joint swelling developed. These manifestations were associated with abdominal distension, hematemesis, hematochezia and hematuria. Exploratory laparotomy revealed a marked bowel distension with edema a...