A2B Blood Group Without Anti-A1 Lectin Antibodies in a Child With an Enzymopathy Hemolytic Disease

Generally, within the ABO blood group system, the AB group is subdivided into two subtypes, A B-1 and A(2)B, with the A(2)B subtype considered to be the rarest and the A B-1 subtype the most common. Given that the A B-2 subtype is the rarest one, its presence is associated with many challenges. hi this report, we present the case of a child with a chronic hemolytic disease with the A(2)B blood group but without anti-A1 lectin antibodies, as well as the challenges encountered.