下颌骨中心性神经纤维瘤较罕见.本文报导2例.对其临床表现、X线所见、鉴别诊断和治疗加以讨论.例1 患者张某,女性,49岁,安徽五河县人.于1978年5月9日入院.住院号:36301.患者右下颌后牙牙龈上长肿块一年余.一年多前右下颌磨牙自行脱落,继之发现该处长一疙瘩,逐渐向外生长、增大.使右边咀嚼食物受碍.平时不痛,有右下唇麻 Mandibular central neurofibroma is relatively rare.This article reports 2 cases.The clinical manifestations, X-ray findings, differential diagnosis and treatment are discussed.Example 1 patients Zhang, female, 49 years old, Wuhe County, Anhui Province in Admitted to hospital on May 9, 1978. Inpatient number: 36301. Patient's right lower jaw posterior teeth on the gingival mass more than a year more than a year ago, the right mandibular molar off itself, followed by the Director found a knot, gradually outward growth, Increase the right to chew food problems. Usually do not hurt, with lower right lip Ma