title: A rare case report of chronic variable immunodeficiency divulged by ABO discrepancy.
abstract: ABO discrepancy refers to incongruence between the results of red cell and serum groupings. One such case is described here; the discrepant results of whose routine ABO grouping led to the diagnosis of common variable immunodeficiency. There was no reaction in the reverse grouping of a young patient presenting with recurrent bacterial infections, pointing towards an absence of antibodies in the serum. Diagnosis was made on the basis of markedly decreased serum immunoglobulin levels and by serum protein electrophoresis showing scanty gamma regions.
authors: Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. Electronic address: dratulsonkar@yahoo.com.
authors: Atul
authors: A
authors: Sonker
authors: Department of Transfusion Medicine, All India Institute of Medical Sciences, Rishikesh, India. Electronic address: dranjudubey@gmail.com.
authors: Anju
authors: A
authors: Dubey
authors: Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. Electronic address: drashullrm@gmail.com.
authors: Ashutosh
authors: A
authors: Singh
authors: Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. Electronic address: rkcsgpgi@gmail.com.
authors: Rajendra
authors: R
authors: Chaudhary
mesh_terms: D000017:ABO Blood-Group System; D000328:Adult; D001788:Blood Grouping and Crossmatching / Q000379:methods*; D017074:Common Variable Immunodeficiency / Q000097:blood / Q000175:diagnosis*; D006801:Humans; D008297:Male
chemical_list: D000017:ABO Blood-Group System
keywords: ABO discrepancy; Anti-A; Anti-B; Immunodeficiency