Graft Versus Host Disease (GVHD) is a medical complication that can occur after an allogeneic stem cell transplantation (HSCT), where the donated cells (the graft) perceive the recipient's body (the host) as foreign and initiate an immune response against it. This condition is particularly significant in the context of cancer treatment, especially for hematologic malignancies such as leukemia, lymphoma, and multiple myeloma.
