Sarcoidosis: the nephrologist's view

Sarcoidosis, a multiorgan granulomatosis of unknown pathophysiology, is of particular interest to the renal specialist. First, the disease may involve the kidney, not only as a cause of granulomatous interstitial nephritis bu t also owing to the fact that various types of glomerulopathies can be obse rved in the course of the disease. Second, sarcoidosis is accompanied with a particular disorder of calcium metabolism that was identified some six de cades ago but whose pathophysiology was elucidated much more recently.