浆细胞肉瘤又称骨髓瘤 ,病理为骨髓内浆细胞异常增生浸润骨骼及软组织 ,好发于胸骨、椎骨、盆骨及颅骨[1] 。患者常以骨性疼痛、病理性骨折、低热、贫血等症状就诊 ,单发于颌骨内者 ,临床报道较少。笔者搜集我院 1989～ 1998年收治的经病理确诊为颌骨浆细胞肉瘤的病例共 5例 , Plasma cell sarcoma, also known as myeloma, pathological bone marrow hyperplasia infiltration of bone marrow and soft tissue, occur in the sternum, vertebrae, pelvis and skull [1]. Often patients with bone pain, pathological fractures, fever, anemia and other symptoms of treatment, single in the jaw, the clinical reports less. I collected in our hospital from 1989 to 1998 admitted to the pathological diagnosis of jaw plasma cell sarcoma in a total of 5 cases,