2018 Volume 43 Issue 4 Pages 598-603
The patient was a 75 year-old man. Laparoscopy-assisted proximal gastrectomy and D1+ lymph node dissection were performed for gastric cancer. The histopathological examination results were U, post,Type0-Ⅱc, 20×15mm, tub2-tub1> por2, pT4a, int, INFb, ly2, v3, pN0(0/7), pPM0, pDM0, pT4aN0M0, and pStage ⅡB. S-1 was orally administered for one year as postoperative adjuvant chemotherapy. A CT examination performed 2 years after the operation revealed a mass at the superior margin of the pancreas. Gastric cancer recurrence was suspected and the decision was made to perform surgery. Since the mass was suspected to have invaded the gastric remnant and the pancreas, complete removal of the gastric remnant, pancreatic tail resection, and splenectomy were performed. The patient was diagnosed as having a desmoid tumor based on histopathological examination. Desmoid tumor is relatively rare and is difficult to distinguish from postoperative recurrence of gastric cancer due to poor characteristic imaging findings. We report a case with a desmoid tumor, developing as an intraperitoneal mass after laparoscopy-assisted proximal gastrectomy, which could be removed by combined resection of adjacent organs.
