骨巨细胞瘤针吸细胞学在术前能作出较正确的诊断，是一种简便易行的诊断方法。自Ｓｙｎｄｅｒ及Ｃｏｌｅｙ（１９５４年）用针吸活检的方法诊断骨关节肿瘤［１］后，Ａｇａｒｗａｌ（１９８３年）报道３６９例骨肿瘤针吸细胞学诊断［２］。本文报道４２例有细胞与病理学资料对 The aspiration cytology of giant cell tumor of bone can make a correct diagnosis before operation, which is a simple and easy diagnosis method. After Synder and Coley (1954) used needle biopsy to diagnose bone and joint tumors [1], Agarwal (1983) reported 369 needle aspiration cytological diagnosis of bone tumors [2]. This article reports 42 cases with cell and pathological data