A case report of extramedullary plasmacytoma of the stomach

Abstract

Extramedullary plasmacytoma of the stomach is a very rare disease.
A 66-year-old woman visited our hospital with upper abdominal pain and appetite loss. Endoscopy revealed three white slightly elevated lesions on the greater curvature from the lower body of the stomach. A biopsied specimen suggested gastric plasmacytoma without H.Pylori. We detected no other lesions or abnormal laboratory data, and thus performed a distal gastrectomy. After the operation, immunohistochemical findings showed atypical plasma cells with Russell bodies and monoclonalλchain staining. Tumor cells invaded the mucosal layer with no lymph node metastasis. The patient remains alive without recurrence 38 months after the operation.