Adenoid Cystic Carcinoma (ACC) is an infrequent slow growing epithelial tumour constituting for around less than 1% of all the oral and maxillo-facial malignancies and almost 10% of all the salivary gland tumors. Parotid gland is the second most common site to be involved in the head and neck region along with submandibular gland, Palate being the most common site involved in the oral cavity. Key feature of these tumors include its asymptomatic presentation, indolent nature, typically showing infiltrative growth and peri-neural invasion. Herein, we report a case of adenoid cystic carcinoma of right parotid gland of a 33-year-old male who presented with complaint of painless slow enlargement of left parotid gland and facial muscle weakness. On Examination firm mass in the region of the left parotid gland as well as left facial paralysis was seen. Biopsy results and further management is discussed here within.
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