title: Para Bombay phenotype--a case report.
abstract: Bombay phenotype is peculiar in that red cells are not agglutinated by antisera A, B or H; while serum contains anti A, B and H. Existence of modifying genes at independent loci with variable expression of ABO genes is postulated. We report here a case of partial suppression where antigens could be detected by elution tests and unlike classical Bombay type, normal amount of appropriate blood group substances were present in saliva. This case of para Bombay phenotype was detected as a result of discrepancy in cell and serum group ng. This highlights the importance of both forward and reverse grouping in ABO testing.
authors.affiliation: Division of Blood Transfusion Services, Sree Chitra Thirunal Institute for Medical Sciences and Technology, Trivandrum.
authors.forename: J
authors.initials: J
authors.lastname: Mathai
authors.forename: P V
authors.initials: PV
authors.lastname: Sulochana
authors.forename: S
authors.initials: S
authors.lastname: Sathyabhama
mesh_terms: D000017:ABO Blood-Group System / Q000235:genetics*; D000236:Adenoma / Q000097:blood / Q000601:surgery; D005260:Female; D006384:Hemagglutination / Q000235:genetics*; D006386:Hemagglutination Tests; D006801:Humans; D007194:India; D008297:Male; D009679:Nuclear Family; D010641:Phenotype; D010911:Pituitary Neoplasms / Q000097:blood / Q000601:surgery
chemical_list: D000017:ABO Blood-Group System