Allograft

In contrast, a transplanted organ or tissue from a genetically identical donor, i.e. an identical twin, is called an isograft, while a transplant from another species is termed a '''xenograft'''. When a tissue is transplanted from one site to another on the same patient, such as a Skin Graft or a tissue flap, it is termed an '''autograft'''.

Allografts and xenografts will be recognised by the recipient's immune system as foreign and will therefore be attacked in a process termed Rejection ; this does not occur in autografts or true isografts (although in practice, transplants between identical twins are usually covered with Immunosuppressants in case they are not 100% genetically identical).

See also Allograft Diseases

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Allograft