浆细胞性肿瘤是来源于B淋巴细胞的罕见肿瘤，表现为浆细胞的单克隆性增殖。多发性骨髓瘤（MM）为这类肿瘤的弥散型，其血和尿中有特征性的单克隆蛋白，可累及多器官系统，为最常见的浆细胞性肿瘤。肩限型浆细胞性肿瘤分为髓内浆细胞瘤（MP）和髓外浆细胞瘤（EMP）。MP典型见于4 Plasmacytoma is a rare tumor derived from B lymphocytes and appears to be a monoclonal proliferation of plasma cells. Multiple myeloma (MM) is a diffuse form of this type of tumor that has characteristic monoclonal proteins in blood and urine that can affect multiple organ systems and is the most common plasmacytoid tumor. Shoulder limited plasma cell tumor is divided into intramedullary plasmacytoma (MP) and extramedullary plasmacytoma (EMP). MP typically found in 4