Tram-line Calcification in Renal Cortical Necrosis

Classic Signs in Uroradiology

“…Thin rims of dystrophic calcification may be deposited at the inner and outer margins of the renal cortex as a result of a major vascular insult that produces cortical necrosis, or rarely, as a consequence of glomerulonephritis, hyperoxaluria, and Alport syndrome, with the development of cortical nephrocalcinosis. The pattern of parenchymal calcification is said to resemble a tramline or railroad tracks (4).…”

Renin and Acute Renal Failure: Studies in Man

“…Sometimes, following cortical necrosis, the viable cortex nd medulla become separated from the dead renin-bearing glomerular zone by bands of calcification (Lloyd-Thomas et al, 1962). Thus the parts of the kidney most liable to damage in acute renal failure are those containing the most renin.…”

Cytomegalovirus infection presenting as acute haemolytic anaemia in an infant.

“…Although a definite diagnosis of renal cortical necrosis can be made only by biopsy or at necropsy (Lloyd-Thomas, Balme, and Key, 1962), the history, clinical course, and radiological findings in our case provide good evidence of this. According to McAlister and Nedelman (1961), renal cortical necrosis must be considered in acute renal failure in children, especially when diarrhoea, vomiting, and dehydration are part of the clinical picture.…”