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Medical Term:

hyperacute rejection



  1. a rejection that usually develops immediately after the implantation of a vascular graft; may be caused by preformed, cytotoxic antibodies to the graft;
  2. a form of antibody-mediated, usually irreversible damage to a transplanted organ, particularly the kidney, manifested predominantly by diffuse thrombotic lesions, usually confined to the organ itself and only rarely disseminated.