Kueckelhaus M et al, Transformation of Face Transplants: Volumetric and Morphologic Graft Changes Resemble Aging After Facial Allotransplantation. American Journal of Transplantation, __: 1-11 (online publication Dec 7, 2015) onlinelibrary.wiley.com/store/10.1111/(ISSN)1600-6143/asset/homepages/transformation_face_transplant.pdf?v=1&s=d70ea89793362225c743a75f78860c439e0df512
(abstract: "Although >30 such operations performed worldwide have yielded promising short-term results, data on long-term outcomes remain scarce. Three full-face transplant recipients [who received transplants at Brigham and Women's Hospital at Boston] * * * Bone and nonfat soft tissue volumes decreased significantly over time * * * Volumetric and morphometric changes in facial allografts have not been reported previously were followed for 40 months")
My comment:
(a) View only photos in Figure 1. There is no need to read text.
(b) The noun allotransplantation means transplantation of a tissue from one individual to another of the same species, from Ancient Greek adjective masculine allos other, another, different.
(c) We in Boston are quite familiar with these recipients, including how they got injured.
(d) The cause of what is happening to these recipients is unclear.