Renal mass: a confusing feature of sarcoidosis.

Sarcoidosis is a systemic disorder with a wide spectrum of clinical involvements. Renal mass is a very rare condition in sarcoidosis. Here, we report a 34-year-old female with renal masses and advanced renal failure. The condition created a lot of diagnosis difficulties. Finally, after histologic diagnosis and corticosteroid therapy, renal masses were resolved and she became free from dialysis.