RÉSUMÉ
Henoch-Sch nlein purpura is a systemic small-vessel IgA dominant vasculitis involoving the capillaries, arterioles, or venules. It is characterized by the classic tetrad of abdominal pain, arthralgia, typical rash, and renal involvement, all of which can occur in any order and at any time over several days to weeks. The central nervous system and lungs may be involved. The gastrointestinal tract is involved in more than 50 percent of patients, manifested most commonly by abdominal pain and gastrointestinal bleeding. And rarely may occur intussusception, bowel nerosis, perforation and intramural hematoma of the duodenum. We report a case of intramural hematoma of the duodenum with Henoch-Sch nlein purpura in 48 year old female patient which was demostrated by upper gastrointestinal endoscopy, abdominal CT scan, hypotonic duodenography and histologic finding of duodenal biopsy. She was treated with supportive care and improved rapidly without any serious gastrointestinal complications.