interstitial periodic acid-schiff positive deposits of amorphous or fibrillar material were observed in 32 % of kidneys with a variety of tubulointerstitial diseases , including medullary cystic disease ( 60 % ) , chronic pyelonephritis ( 20 % ) , and hydronephrosis ( 33 % ) .
C0022646
kidneys
C0085697
chronic pyelonephritis