<prompt> Most common parotid gland tumour isPleomorphic adenomaMonomorphic adenomaPrimary lymphomaAdeno carcinoma  <response>: A Pleomorphic adenoma Parotid tumours Most common is pleomorphic adenoma 80-90 Low-grade malignant tumours cannot be distinguished from benign neoplasms High-grade tumours grow rapidly are usually painful and often have lymph node involvement of presentation CT and MRI are useful Fine-needle aspiration is better than open biopsy Tumours should be excised, not enucleated 