长骨骨化性纤维瘤（ＯｓｔｅｏｆｉｂｒｏｕｓＤｙｓｐｌａｓｉａ）在国际卫生组织第二次骨肿瘤组织学分类上被列入骨肿瘤样病变。在文献中归类于良性骨肿瘤，发病率在我国占原发骨肿瘤的０．７％，占良性骨肿瘤的１．２％。多发生于幼儿和少年，以胫骨发病最常见。本文报... Osteofibrous Dysplasia is listed as a bony tumor-like lesion in the second histological classification of bone tumors in the International Health Organization. Classified in benign bone tumors in the literature, the incidence rate in China accounted for 0.7% of primary bone tumors, accounting for 1.2% of benign bone tumors. Occurred mostly in young children and adolescents, the incidence of sacrum is the most common. This article reports...