Atheroembolic involvement of renal allografts.

Renal atheroembolism is a well-recognized cause of renal insufficiency. Two renal allograft recipients with cholesterol atheroemboli in their allograft biopsies are described. In one patient, the origin of the atheroemboli was the recipient aorta while in the second patient the source was the donor. Renal allograft atheroembolism should be considered in elderly recipients or recipients of kidneys from older donors.