This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
Best diagnostic modality for parotid swelling is 
Select and explain. 
A. Enucleation, B. FNAC, C. Superficial parotidectomy, D. Excisional biopsy
B: FNAC
Answer: B: FNAC 
Explanation: Best diagnostic modality - FNAC Best imaging investigation - MRI (MRI is the most sensitive study to determine soft-tissue extension and involvement of adjacent structures but it lacks the specificity for differentiating benign from malignant neoplasms.)