This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
Most common parotid tumor 
Select and explain. 
A. Pleomorphic adenoma, B. Adenocystic carcinoma, C. Epidermoid tumor, D. Adenocarcinoma
A: Pleomorphic adenoma
Answer: A: Pleomorphic adenoma 
Explanation: Pleomorphic adenoma is a common benign salivary gland neoplasm characterised by neoplastic proliferation of parenchymatous glandular cells along with myoepithelial components, having a malignant potentiality. It is the most common type of salivary gland tumor and the most common tumor of the parotid gland. Refer robbins 9/e p556