This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid Gland, Subject name: Surgery
Warthin's tumor is tumor of which gland? 
Select and explain. 
A. Parotid gland, B. Submandibular gland, C. Lingual gland, D. Minor salivary glands
A: Parotid gland
Answer: A: Parotid gland 
Explanation: Ans. (a) Parotid glandRef: Bailey & Love 26th ed. / 733RememberWARTHIN TUMOUR* An exclusive tumor of parotid gland* Second most common benign parotid tumor (5%)* Most common bilateral benign neoplasm of the parotid* Marked male as compared to female predominance* Occurs later in life (sixth and seventh decades)* Presents as a lymphocytic infiltrate and cystic epithelial proliferation* May represent heterotopic salivary gland epithelial tissue trapped within intra-parotid lymph nodes* Incidence of bilaterality and multi-centricity of 10%* Malignant transformation rare.