This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Following cranial nerve is most commonly involved in patients with sarcoidosis 
Select and explain. 
A. II cranial nerve, B. III cranial nerve, C. VII cranial nerve, D. IX cranial nerve
C: VII cranial nerve
Answer: C: VII cranial nerve 
Explanation: Neurological findings are observed in 5% of patients with sarcoidosisSeventh nerve involvement with unilateral facial palsy is most common. It occurs suddenly and is usually transientOther common features of neurosarcoidosis:Optic nerve dysfunctionPapilledemaPalate dysfunctionHearing abnormalitiesChronic meningitisHypothalamic and pituitary abnormalitiesHeerfordt's syndrome:FeverB/L parotid enlargementAnterior uveitisVIIth nerve palsy(ref:Harrison's 18/e p2809, 17/e p2139)