Lallogreffes

Lallogreffes is not a standard term in major medical literature. It may be a misspelling or variant of allogreffes (greffes allogéniques) in French, or the English term allografts. An allograft is a tissue or organ graft transplanted between genetically non-identical members of the same species.

Allografts are used to replace damaged or diseased tissue when autograft options are not available. They can involve solid organs (such as kidney, liver, heart, and lung), or tissues (bone, skin, cornea, tendons, vascular grafts, or islet tissue). Donors can be living or deceased, and recipients undergo compatibility assessment, usually focusing on histocompatibility antigens (HLA).

Immunological barriers are central. Unlike autografts, allografts can trigger host-versus-graft rejection, requiring immunosuppressive therapy to enable long-term survival. Rejection can be hyperacute, acute, or chronic. Immunosuppression increases infection risk and other adverse effects, and regimens are tailored to graft type and patient risk.

Tissue banking and preservation are essential to allografts. Donor screening, sterilization, and methods such as cold storage or cryopreservation help maintain graft viability. Regulatory oversight ensures ethical procurement, allocation, and post-transplant monitoring.

In practice, the term's exact usage varies by language and source; when encountered, clarification is advisable. Allografts remain a cornerstone of transplant medicine, balancing donor availability, immune compatibility, and graft longevity.