脂肪肉瘤在软组织中较常见,而原发于骨骼者则十分罕见。1963年Catto和Stev-ens复习世界文献,共报告16例,此后又陆续报告过几例,至今共报告20例左右。但在这些病例中,除1955年Dawson氏报告的1例和1963年以后报告的一些病例比较可靠外,其他病例不能完全肯定是真正的原发性骨脂肪肉瘤。我们遇到1例,报告如下。 Liposarcomas are more common in soft tissues, whereas those with primary bones are rare. In 1963, Catto and Stev-ens reviewed the world literature and reported a total of 16 cases. Since then, several cases have been reported in succession. So far, about 20 cases have been reported. However, in these cases, except for 1 case reported by Dawson in 1955 and some cases reported after 1963 which are more reliable, other cases cannot be completely sure of true primary osteosarcoma. We encountered 1 case and the report is as follows.