Giant spontaneous duodenal hematoma in hemophilia A.

A 12-year-old hemophilic boy was admitted because of acute abdomen with intraabdominal bleeding. The cause was a giant intramural duodenal hematoma that resolved after 16 days of parenteral nutrition. This condition is a rare complication of coagulation disorders, but it should be suspected in cases with internal blood loss. Abdominal ultrasonography, computed tomography scans, and contrast x-ray studies are diagnostic procedures for such cases.