[Mesenteric hematoma disclosing periarteritis nodosa. Apropos of a case].

A 59 year old woman, asthmatic and hypertensive, presented with unexplained abdominal pains and signs of internal hemorrhage. Ultrasonography and CT demonstrated mesenteric hematomas. Theses hematomas had been related to fissured aneurysms of branches of superior mesenteric artery in course of polyarteritis nodosa and proved by angiography.