This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Sarcoidosis doesn't involve 
Select and explain. 
A. Brain, B. Hea, C. Lung, D. Kidney
A: Brain
Answer: A: Brain 
Explanation: Ref Robbins 9/e 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, it's very rare