骨瘤多见于颅面骨，发生于四肢长骨者较为少见。近来我院收治1例肽骨骨务性骨瘤并经手术及病理证实。现摘要报告如下。患者男性，22岁，因发现石上臂包块伴局部疼痛一年就诊。一年前无意中发现右上臂有一鸽蛋大包块，当时局部无任何不适。后包块逐渐增大，局部出现疼痛。体检： Osteosarcoma is more common in craniofacial bones, and it is less common in long bones of the limbs. Recently, our hospital treated 1 case of bone bony osteoma and confirmed by operation and pathology. The summary report is as follows. The patient was a 22-year-old man who had a year of medical treatment because he found that the upper arm mass was associated with local pain. One year ago, it was found that there was a big egg block on the right upper arm. There was no local discomfort at the time. After the mass gradually increased, local pain. Physical examination: