[Cystic lymphangioma of the mesentery]

Cystic lymphangioma of the mesentery is a rare congenital lesion with a relatively low growth potential. It is typically found in young adults, and thereby excluded from other, more aggressive lymphatic malformations seen in newborns. Symptoms of onset may be dramatic and sudden, but are often preceded by an interval of diffuse abdominal discomfort, possibly associated with loss of weight and a palpable abdominal mass. The multicystic architecture of the lesion is clearly visible on an abdominal CAT-scan and indicates the diagnosis. Percutaneous drainage of the cysts has neither diagnostic nor therapeutic effects. Radical excision of the expansion may include resection of the related intestinal segment. Lymphangioma of the mesentery is not malignant. We suggest an ultrasound follow-up six months after the intervention to establish whether the surgery has been successful.