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: ENT
All are true for pleomorphic adenoma except: 
Select and explain. 
A. Arises from parotid, B. May turn into malignant, C. Minor salivary gland can be affected, D. None
D: None
Answer: D: None 
Explanation: They represent 60-70% of all parotid tumors and 90% of submandibular benign tumors M/C age group affected is fouh decade M/C gland involved - parotid gland M/C site affected in parotid gland is - tail of parotid gland They are slow growing painless tumors Histologically, they contain both epithelial and mesenchymal elements and are therefore called as mixed tumors. It can rarely undergo malignant transformation (current otolaryngology 2nd/ed ) TOC - Surgery - Complete surgical i.,xcision of the tumor with uninvolved margins is the recommended treatment Prognosis is excellent with a 95% non-recurrence rate.