A 39-yr-old Japanese man underwent living related kidney transplantation. B
ecause the: graft was ABO-incompatible:. he was treated with double filtrat
ion plasmapheresis before transplantation and his immunosuppressive therapy
was stronger than usual. However immunoglobulin A nephropathy, accompanied
by cellular crescents and necrotizing lesions, developed after 18 months.
To our knowledge. the association of IgA nephropathy with ABO-incompatible
kidney transplantation has not been reported previously.