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
Salivary gland tumor exclusively seen in parotid gland 
Select and explain. 
A. Wahin's tumor, B. Pleomorphic adenoma, C. Mucoepidermoid Ca, D. Adenoid cystic Ca
A: Wahin's tumor
Answer: A: Wahin's tumor 
Explanation: Answer-A. Wahin's tumor"Wahin's tumor arises only in the parotid gland" - Textbook of surgery"Wahin's tumor arises almost exclusively in the parotid gland (the only tumor viually restricted to the parotid)"Salivary gland tumor seen only it parotid gland- Wahins'tumor.