Renal scintigraphy in acute scleroderma: report of three cases

Scintigraphic findings in acute renal failure secondary to scleroderma are reported. In three patients, we have demonstrated severe reduction of renal perfusion with little or no parenchymal uptake of tracer and absent excretion. These findings are compatible with the known histological process of occlusive vasculopathy, and such scintigraphic findings at presentation may reflect a poor prognosis for renal recovery.