This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology and Rheumatology, Subject name: Medicine
Most common cranial nerve involved in sarcoidosis: 
Select and explain. 
A. 3, B. 5, C. 7, D. 8
C: 7
Answer: C: 7 
Explanation: Ans. C. 7* The most common cranial nerve involved in Sarcoidosis is the seventh nerve, which can be affected bilaterally.* Nerve biopsy can reveal non caseating granulomas infiltrating the endoneurium, perineurium, and epineurium along with lymphocytic necrotizing angiitis.* Neuro sarcoidosis may respond to treatment with glucocorticoids or other immunosuppressive agents.