骨膜骨肉瘤为一种极为少见的骨肉瘤 ,好发于股骨、胫骨 ;发生于颌骨者更为罕见。近日笔者收治一例右下颌骨体骨膜骨肉瘤患者 ,报告如下。1　临床资料患者女性 ,2 4岁 ,主因“右下颌无痛性肿物两月 ,加速生长 1月”。 1 998年 2月 2 2门诊局麻下行肿物活检 ,病理报告为 :骨膜骨 Periosteal osteosarcoma is an extremely rare osteosarcoma, occur in the femur, tibia; occurred in the jaw were more rare. Recently, I admitted to a case of right mandibular periosteal osteosarcoma patients, the report is as follows. A clinical data of female patients, 24 years old, mainly due to “right mandibular painless two months, accelerated growth in January.” February 1998 2 2 outpatient local anesthesia biopsy, the pathology report: periosteal bone