骨内神经鞘膜瘤较为罕见。国外资料统计该病占骨肿瘤的0.048％;国内报导甚少。笔者遇到例,经手术病理证实,现报告如下: 患者男性,39岁。1985年2月偶尔发现右大腿前内侧有鸭蛋大肿块,摸时有轻度痛感。体格检查:右大腿中下段前内侧有鸭蛋大肿块,无红热,无静脉 Intraosseous nerve sheath tumors are rare. According to statistics from foreign countries, the disease accounts for 0.048% of bone tumors; there are few domestic reports. The author encountered an example, confirmed by surgery and pathology, the report is as follows: The patient male, 39 years old. Occasionally in February 1985, there was a large lump in the anterior medial thigh of the right thigh, which caused mild pain. Physical examination: Large masses of duck eggs in the medial lower part of the right thigh, no red heat, no veins