isograft

surgery

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June 29, 2026

Quick Summary

An isograft is a type of tissue transplant that occurs between genetically identical individuals, such as identical twins. This is distinct from an allograft, which involves tissue transfer between genetically non-identical members of the same species.12

In surgical procedures, isografts are accepted by the recipient indefinitely because of the genetic compatibility. This type of transplant is one of four categories, the others being autografts (tissue transplanted within the same individual), allografts, and xenografts (transplants between different species).31

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transplant
Transplants and grafts
…twins or highly inbred animals—isografts—are accepted by the recipients indefinitely. Grafts from a donor to a recipient of the same species—allografts or homografts—are usually rejected unless special efforts are made to prevent this. Grafts between individuals of different species—xenografts or heterografts—are usually destroyed very quickly by the recipient. (The…
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…twins or highly inbred animals—isografts—are accepted by the recipients indefinitely. Grafts from a donor to a recipient of the same species—allografts or homografts—are usually rejected unless special efforts are made to prevent this. Grafts between individuals of different species—xenografts or heterografts—are usually destroyed very quickly by the recipient. (The…
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