动脉瘤性骨囊肿是一种骨组织的良性疾病。但在颌骨发病较少见。我院1982年5月收治一例现追踪报道如下。患者 梁某某,男,12岁。发现右下颌骨无痛性膨隆并逐渐增大8个月。发病前后无畏寒发热或局部肿痛,无外伤史。检查:右侧颌面隆起4cm×4cm,皮肤正常。右下牙均无龋坏、松动、叩痛、移位。右下颌颊侧隆起,可触及乒乓球样感。X 线片示右下颌骨体部、升支部骨质膨隆,骨皮质变薄,骨密度降低,部分呈蜂窝状。X 线诊断:右下颌骨良性骨肿瘤。临床诊断:右下颌骨造釉细胞瘤。行手术切除,术中见右下颌骨 Aneurysmal bone cysts are a benign condition of bone tissue. However, the incidence of jaw in the less common. Our hospital in May 1982 admitted a follow-up reports are as follows. Liang Moumou patients, male, 12 years old. Painless swelling of the right mandible was found and gradually increased for 8 months. Before and after the onset of fever or no local chills, no history of trauma. Check: right maxillofacial bulge 4cm × 4cm, the skin is normal. Lower right teeth are carious, loose, percussion pain, shift. Right cheek buccal uplift, can reach the table tennis like. X-ray showed the right mandibular body, ascending branch of the bullae, cortical bone thinning, reduced bone mineral density, part of the honeycomb. X-ray diagnosis: Right mandible benign bone tumor. Clinical diagnosis: Right mandible ameloblastoma. Surgical resection, see the right mandibular surgery