[Calcification of the intrarenal excretory tract in a transplanted kidney]

We present a clinical case of calcification of the intrarenal excretory tract as a complication of kidney transplant. Its etilogic study indicates infection by urea splitting germs as the main cause. In the literature reviewed we found renal lithiasis as an uncommon complication. However, we found no case of urothelial mucus coating by mineral apposition as in the case described.