小腸間膜デスモイド腫瘍の1例

A 51-year-old man was referred to our hospital in 2005, because of an abdominal mass in thehypogastrium. There was no tenderness, and the tumor moved to epigastric resion easily. Therewere no important findings in a physical examination, except the mass. Enhanced CT showed themass with clear boundaries of 8cm size that the inside was contrasted heterogeneously in pelviccavity, and the internal was able to confirm tessellated mass by a supersonic wave. We doubtedintestinal GIST and performed an operation. We showed mass of mesoileum origin, in 15cm oralside from terminal ileum, there was no adhesion and invasion to circumference, so we underwent apartial resection of the terminal ileum. It was diagnosed as desmoid of a mesoileum origin by apostoperative histopathology diagnosis. There has been no recurrence for postoperative threeyears. Intraabdominal desmoid is relatively rare, and often noted a history of the laparotomy orestrogenic intervention, and combined with Gardner’s syndrome. In addition, it is assumed that itusually grows infiltrative, and easy to develop local recurrence. We experienced a rare case fallingunder neither, so we report it.