This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Surgery
[{'content': 'A patient presented with gradually progressive painless mass since 10 years. It is firm to nodular & variable in consistency at each site. Most probable diagnosis is:- \nSelect and explain. \nA. Dermoid cyst, B. Sebaccous cyst, C. Pleomorphic adenoma, D. Malignancy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: * The lesion is located at the angle of mandible - in front, below and behind the ear lobule which is the characteristic location of parotid tumour more specifically pleomorphic adenoma. * The usual location of dermoid cyst / teratoma is Ovary, Midline neck etc * Sebaceous cyst occurs in the following locations. 1. Back 2. Scalp - No punctum 3. Scrotum SS MC benign tumour of parotid gland: Pleomorphic adenoma', 'role': 'assistant'}]