Successful Homotransplantation of the Kidney between Nonidentical Twins

Abstract

IN 1955, we reported the successful transplantation of a kidney from a healthy twenty-three-year-old man to his monozygotic twin who was terminally ill with chronic renal failure. At that time we concluded: "Tissue transplantation including that of a functioning kidney appears to be a feasible procedure in identical twins but to date successful permanently functioning homografts appear to be limited to such individuals."¹ It is the purpose of this paper to report the functional survival of a transplanted kidney whose donor was a fraternal, not an identical, twin.Since 1955 in this laboratory, kidneys have been successfully transplanted between 9 . . .