A Case of Adult Cystic Lymphangioma of the Small Bowel Mesentery

Abstract

We report a rare case of adult cystic lymphangioma of the small bowel mesentery. The patient was a 46-year-old man who presented epigastralgia and fever ; CT scan revealed a mass near the tail of the pancreas, and he was referred to our hospital for further examination. CT images obtained subsequently revealed a 50-mm cystic mass with low attenuation in the root of the mesentery of small intestine, and it seemed to be separated from the bowel loops. The wall of the cystic mass showed enhancement after contrast injection. The mass showed low signal intensity in T1-weighted MR images and high signal intensity in T2-weighted MR images. FDG-PET images revealed slight FDG uptake in the lesion. Double-balloon endoscopy showed no lesions in the lumen of the intestine. The mesenteric tumor was resected at laparotomy and histologically diagnosed as cystic lymphangioma.