“…It has been reported in glomerulonephritis (Thorn et al, 1944;Sawyer and Solez, 1949;Murphy, Settimi and Kozokoff, 1953), pyelonephritis (Joiner and Thorne, 1952;Enticknap, 1952;Nussbaum, Bernhard and Mattia, 1952), polycystic kidney disease (Borst, 1949), nephrocalcinosis, analgesic nephropathy (Cove-Smith and Knapp, 1973) and renal tract obstruction (Morgan et al, 1978). Although this is apparently a non-specific pathological change, it seems to occur more commonly in tubular than in glomerular disorders (Kleeman, Okun and Heller, 1966).…”