Abstract
A 47-year-old woman was referred to our hospital because of a gastric submucosal tumor which had increased in size during a one-year observation period. The tumor (40 mm in diameter) was observed at the greater curvature of the middle part of the gastric body. Gastric schwannoma was preoperatively diagnosed by endoscopic ultrasound-guided fine needle aspiration biopsy. A laparoscopic partial gastrectomy was performed. Histopathological examination revealed spindle-shaped cells arranged in palisades. Mitotic figures were rare. The specimen was positive for S-100 protein, but negative for desmin, α-SMA, c-kit and CD34. Based on these findings, the tumor was diagnosed as a benign gastric scbwannoma. The postoperative course was uneventful. The patient remains alive without recurrence. Laparoscopic partial gastrecromy is thought to be an appropriate treatment for gastric schwannoma.
