Rejection which may appear within minutes or hours of transplantation is: (A) Hyperacute Rejection, (B) Acute cellular (T cell-mediated) rejection, (C) Acute antibody-mediated rejection, (D) Chronic Rejection
Answer is A. Hyperacute RejectionThis form of rejection occurs within minutes or hours after transplantation. It occurs when preformed anti-donor antibodies are present in the circulation of the recipient.Ref: Robbins and Cotran Pathologic Basis of Disease; 9th edition; Chapter 6; Diseases of the Immune System; Page no: 233