口腔颌面部软组织骨瘤极为罕见,我科曾诊治一例位于下颌后窝区的软组织骨瘤,现报告如下。患者 王某,男,11岁,河南籍,住院号126473。因发现左下颌部无痛性肿块半年,在当地医院就诊并拍摄下颌骨 X 线片,考虑为左下颌骨肿瘤而来我院治疗。住院后体检,全身一般情况好,左侧下颌升支及下颌角 Oral and maxillofacial soft tissue osteoma is extremely rare, our department had a case of diagnosis and treatment of soft tissue osteoma in the posterior fossa, are as follows. Patient Wang, male, 11 years old, Henan membership, hospital number 126473. Due to the painless mass of the left lower jaw for six months, he was treated at a local hospital and photographed the mandible X-ray film to treat left mandibular tumors in our hospital. Physical examination after hospitalization, the general condition of the body is good, the left mandibular ascending and mandibular angle