Insidious infection only presenting as a symptom, a urinary hemorrhage The other manifestations are less frequent and little specific The affected patient will suffer symptoms of compression From kidneys and urinary ways, followed by infection of the urinary system Nephritis collos and strong hypertension due to compression of the renal vessels An x-ray exame of the urinary vessels will show up The tumour that misshapes the renal structures A nephroctomy will constitute the only single prevalent treatment Which consists in the extration of the kidneys through surgery