Background: The para-Bombay phenotype is characterized by H antigen partially or totally deficient on red blood cells and the presence of ABH substances in body fluids. Methods: A patient with discrepant results in forward and reverse ABO phenotyping was further investigated by serological and molecular methods. Results: Ortho gel and tube results showed weak A antigen expression and weak antibody reacting with A and B cells. Absorption-elution assay detected B antigen, and saliva test confirmed substances H were present. The patient was confirmed as A102B101 and Le(a+b+) phenotype. Conclusions: These findings suggest that the case is AB Para-Bombay Phenotype (secretor).
基金：
Traditional Chinese Medi-cine Bureau of Guangdong Province, China [2020-KT1137]
第一作者机构：[1]Guangzhou Univ Chinese Med, Dept Blood Transfus, Affiliated Hosp 2, 111 Dade Rd, Guangzhou 510120, Guangdong, Peoples R China
推荐引用方式(GB/T 7714)：
Liang Zheng,Li Jiaqi,Chao Yan,et al.A Case of AB Para-Bombay Phenotype with Weak A Antigen Expression[J].CLINICAL LABORATORY.2021,67(12):2734-2737.doi:10.7754/Clin.Lab.2021.210439.
APA：
Liang, Zheng,Li, Jiaqi,Chao, Yan,Lyu, Yuhua,Zhou, Houquan...&Lu, Yanjun.(2021).A Case of AB Para-Bombay Phenotype with Weak A Antigen Expression.CLINICAL LABORATORY,67,(12)
MLA：
Liang, Zheng,et al."A Case of AB Para-Bombay Phenotype with Weak A Antigen Expression".CLINICAL LABORATORY 67..12(2021):2734-2737
