[Cystic lymphangioma of the lesser omentum].

INTRODUCTION: Cystic lymphangiomas of the abdomen are rare tumors. These tumors are discovered fortuitously or during a complication. OBSERVATION: In a 5 year-old child, examined in an emergency because of suspected appendicitis, two cystic lymphangiomas of the small omentum were discovered, one measuring 10 cm and the other 7 cm and attached to the first with posterior extension in the lesser sac of the peritoneum. COMMENTS: The majority of abdominal cystic lymphangiomas are discovered in the early years of life. There are two major revelation lodes: a tumoral syndrome with pain or a complication (torsion, infection, rupture). The treatment is surgical with excellent prognosis.