A Case of ABO-Incompatible Kidney Transplantation for a False-Positive T and B-Cell Crossmatch Test Due to Anti-A Antibodies.

The recipient was a 50-year-old man with blood type O who was referred to our department for a pre-emptive ABO-incompatible kidney transplantation (KTx), with his wife as the donor whose blood was type A. However, both of the T and B cell complement-dependent crossmatch and flow cytometric crossmatch tests showed positive results. Even though donor-specific antibodies were negative by Luminex, we did not recommend transplantation and he had received dialysis therapy for 3 years.