红细胞获得性类B抗原在血型学上比较少见,自从1959年Cameron等首次报告7例A_1型病人有获得性的类B抗原后,才逐渐散见于文献.上海市立医学化验所于1962年在国内第一次发现类B抗原.鉴于类B抗原对血型鉴定及交叉配合试验带来严重干扰,在抢救危重病人时,可造成输血困难,现将本院所见1例报告如下,供参考.病例情况介绍患者张某,男,46岁,干部,住院号63563.1972年4月28日在上海某医院行胃癌根除术.1974年12月11日因直肠癌在本院行乙状结肠部分切除 Erythrocyte-acquired class B antigens are rare on the basis of their blood type, and they were gradually found in the literature since Cameron et al. First reported 7 cases of type A patients with acquired antigen B in 1959. Shanghai Municipal Institute of Medical Laboratory was founded in 1962 in China The first discovery of class B. In view of class B antigen on the blood type identification and cross-mating test with serious interference in the rescue of critically ill patients, can cause blood transfusion difficulties, we see a hospital reported the following for reference. Situation of patients Zhang, male, 46 years old, cadre, hospital number 63563. April 28, 1972 in Shanghai, a hospital gastric cancer radical surgery .December 11, 1974 due to rectal cancer in our hospital sigmoid colon resection