This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'The commonest site of Pleomorphic adenoma is ? \nSelect and explain. \nA. Parotid salivary gland, B. Submandibular salivary gland, C. Sublingual gland, D. Submaxillary gland', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Parotid salivary glandPleomorphic adenoma o This is the Commonest neoplasm of Salivary glands.o The most Common salivary gland involved is Parotid - represent about 60% tumors in the parotid. o Submandibular and minor salivary glands may also be involved rarely.o Pleomorphic adenoma ---> Parotid > Submandibular > minor salivary glands.o They are derived from a mixture of ductal (epithelial ) and myoepithelial cells and therefore they show both epithelial and mesenchymal differentiation - Also called mixed tumor.", 'role': 'assistant'}]