[Tubulointerstitial nephropathy--radionuclide imaging diagnosis].

There are many spectrums in renal diseases which induce tubulointerstitial nephropathy (TIN). Primarily, the renal tubule and interstitium are involved but glomerular and vascular lesions are found in the chronic course of TIN. Renal scintigraphy is poor for evaluating characteristic aspects of tubular function of TIN but demonstrate individual renal function as a whole. Particularly, measurement of the 99m-Tc-DMSA renal uptake rate is useful for evaluating a functioning tubular mass.