Endo-Catch®を用いた胃外発育型gastrointestinal stromal tumor（GIST）に対する腹腔鏡下手術

A case of exogastric-growth-type gastrointestinal stromal tumor (GIST) resected laparoscopically using the Endo-Catch®

　胃外発育型gastrointestinal stromal tumor（以下，GIST）に対して，Endo-Catch^®を用いた腹腔鏡下切除を施行したので報告する．患者は58歳，男性，胃穹窿部に径40mm大の腫瘍を認め，胃粘膜下腫瘍と診断し手術を施行した．手術では，胃穹窿部漿膜面に連続した胃外発育型の腫瘍を認め，Endo-Catch^®を用いて腫瘍を包み込み，surgical marginを確保し，Endo-GIA universal^® 45mmを用いて，胃部分切除術を施行した．腫瘍は45×33×40mm大で，病理組織学的検査ではCD34陽性，c-kit陽性を示し，胃GIST（uncommitted type）と診断された．術後経過は良好で，術後9日目に退院し，現在も無再発生存中である．

We report a case of exogastric-growth-type gastrointestinal stromal tumor (GIST) resected by laparoscopic surgery using the Endo-Catch. A 58-year-old man was diagnosed with a submucosal tumor of the stomach based on an upper gastrointestinal series during a medical checkup. We perfomed laparoscopic surgery for a preoperative diagnosis of GIST of the stomach and used an Endo-Catch^® during the operation to prevent dissemination of tumor cells.