<prompt> Sarcoidosis doesnt involveBrainHeaLungKidney  <response>: Ref Robbins 9e p693 Sarcoidosis almost always involves the lungs, but it can also affect the skin, eyes, nose, muscles, hea,liver, spleen, bowel, kidney, testes, nerves, lymph nodes, joints, and brain. Granulomas in the lungs can cause narrowing of the airways and inflammation and scarring fibrosis of lung tissue Only 5-15p cases have involvement of sarcoidosis in brain called as neurosarcoidosis, its very rare 