Abstract
(Case 1) A 43-year-old woman who had been diagnosed with ascending mesenteric cyst of the ascending colon 1 year ago visited our hospital for sudden pain in the right lower quadrant of the abdomen and high fever. Computed tomography (CT) showed a mesenteric cyst measuring 12×9 cm ; therefore, infection was suspected. After percutaneous drainage and antibiotic therapy, ileocecal resection was performed. Histopathologic test revealed mesenteric cystic lymphangioma with inflammation. (Case 2) A 30-year-old man visited our hospital for sudden abdominal pain and high fever. CT showed a multiple cystic tumor measuring 13×11 cm in the mesentery of the jejunum. After antibiotic therapy, the tumor was excised with about 50 cm of the jejunum. Histologic test revealed cavernous lymphangioma with hemoid necrosis. (Conclusion) Adult mesentric lymphangioma is relatively rare and usually remains occult. However, sometimes it manifests as acute abdominal pain caused by infection of lesions. Herein, we review 2 cases of lymphangioma in which resection was performed under the suspicion of infection in the context of the Japanese literature.