[Mesenteric cystic lymphangioma].

BACKGROUND: Cystic lymphangioma is an uncommon congenital malformation usually encountered in children and often discovered fortuitously. CASE REPORT: A 46-year-old man was hospitalized for acute alcoholic hepatitis with edematoascitic decompensation. The abdominal and pelvic CT scan showed homogeneous hepatomegaly and a tumoral process involving the terminal ileal loops without signs of occlusion or node enlargement. Pathology reported benign mesenteric multicystic lymphangioma. DISCUSSION: Cystic lymphangiomas account for 7% of all intra-abdominal cystic formations. The ileal localization predominates with little or no clinical expression. Ultrasonography and CT scan provide complementary information on the relations with other organs. Magnetic resonance imaging is currently the gold standard allowing precise diagnosis of the anatomic relations and identifying intracystic hemorrhage. The pathology examination is required to eliminate possible benign multicystic mesothelioma which may occasionally take on an aggressive form. Complete surgical excision provides cure.