[Primary hyperparathyroidism as a cause of chronic renal failure].

Nephrocalcinosis is a rare cause of chronic renal failure. We describe a 64 year-old man, who was admitted to hospital due to chronic renal failure. An ultrasound examination and a computed tomography of the kidneys showed bilateral, severe nephrocalcinosis. He had hypercalcaemia, hyperparathyroidism, and a bone disease caused by an adenoma in one of the parathyroid glands. After removal of the adenoma, the plasma calcium level was in control, but renal function deteriorated. The patient was treated with dialysis and renal transplantation.