A CASE OF LYMPHANGIOMA DUE TO WEAKNESS OF THE LAMINA MUSCULARIS MUCOSAE OF THE SMALL INTESITINE

Abstract

A 26-year-old woman who complained of abodominal pain and vomiting was treated with noninvasive therapy, and was suspected having an intestinal tumor based on the results of an abdominal CT examination. She underwent double-balloon endoscopic examination, and a white-yellowish submucosal tumor was observed in the upper jejunum. After partial resection of the jejunum, the tumor was iagnosed as an intestinal lymphoangioma. Histological examination revealed that the mucosal membrane was thin, weak and partially ruptured at the site of the tumor. This organic weakness of the mucosal membrane was suggested to be the cause of the lymphoangioma growth and symptoms.