Infarction of renal allografts demonstrated by imaging with Tc-99m-DTPA.

The diagnosis of renal infarction on serial scintimages in renal allograft recipients is a relatively easy diagnosis. When the infarction is total or occupies a major portion of the kidney, the infarcted area will appear as photonpenic. Smaller infarctions will produce characteristic wedge shaped or oval defects along the kidney periphery. A possible source of error in interpretation is a recent biopsy procedure on the transplanted kidney.