我室对遗传咨询病例共作外周血染色体859例,检出异常核型47例,占5.5%,其中两例被鉴定为世界首级核型。资料与方法我们自1982.1～1990.12开展遗传咨询工作,对疑有染色体异常的病例进行外周血淋巴细胞染色体检查。按常规方法培养 GTG 显带染色;个别病人做 C 带及 x 染色质检查。例计数30个核型,镜下 My room for genetic counseling cases of peripheral blood chromosome 859 cases were detected in 47 cases of abnormal karyotype, accounting for 5.5%, of which two were identified as the world’s first karyotype. Materials and Methods We conducted genetic counseling work from January 1982 to December 1990 with chromosomal examination of peripheral blood lymphocytes in cases of suspected chromosomal abnormalities. According to conventional methods to develop GTG banding staining; individual patients do C and x chromatin examination. Example counts 30 karyotypes, microscopically