Thank you. I was diagnosed with sarcoidosis in 1989 when it appeared in my eyes. I am now 74, 5 feet 8 inches tall and weigh 175 pounds. After all these years of having skin related problems with sarcoidosis, in 2012 I developed pericarditis due to sarcoidosis. Many months of heavy medications (prednisone and others) supposedly cleared it up, but recently I was told I have stage 3 kidney disease with a GFR of 44. My question is this: Can kidney disease be caused by sarcoidosis? If so, what can I do to prevent further deterioration of my kidney function?