Gastric plasmocytoma: a rare cause of upper gastrointestinal bleeding.

We present the case of a young woman with anemia who was admitted to our department. An initial study with upper endoscopy showed an ulcerative lesion on the greater curvature of the stomach. The biopsies led to the diagnosis of gastric plasmocytoma. Imaging test where made to exclude other areas of afection, and treatment consisted of eradication of Helicobacter pilory and surgery with good results. A differential diagnosis with extramedullary involvement of multiple mieloma has to be made in this pathology since extramedular plasmocytomas are a rare type of plasma cell neoplasms.