A Case of Resectable Intra-abdominal Desmoid Tumor after Laparoscopic Assisted Total Gastrectomy

Abstract

A 62-year-old man who was performed laparoscopic-assisted total gastrectomy (LATG) for advanced gastric cancer 3 years and 7 months earlier, was suggested to have a tumor on the mesentery by computeed tomography. Because we confirmed a growth of the tumor and abnormal uptake of FDG to the tumor in PET-CT, we suspected locoregional recurrence or other malignant tumor in the mesentery. At first, we decided to perform laparoscopic surgery for the examination of the abdomen. It revealed a 30 mm elastic-hard solitary tumor in the mesentery of the jejunum, and there were no other tumors. We continued the laparoscopic procedures and finished the operation without injuring mesenchymal blood vessels. Microscopically, the tumor was composed of dense bundles of spindle cells. Immunohistochemical staining was positive for β-catenin. Based on these findings, the tumor was diagnosed historogically as a desmoid tumor. The patient remains well 6 months after this operation without any signs of recurrence.
Surgical trauma was reported to be an important etiologic factor predisposing to desmoid growth. In this paper, we report a case of a desmoid tumor developed after LATG for which laparopsopic tumor resection was performed.