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Introduction The most common indication for surgery of the parotid gland is the presence of a mass or tumor. The majority of distinct parotid masses are neoplasms with benign tumors predominating. Pleomorphic adenoma (mixed tumor) and Warthin tumor (papillary cystadenoma…
Introduction A hollow viscus located immediately posterior to the larynx, the hypopharynx is related to the oral pharynx superiorly and the cervical esophagus inferiorly. It is divided into three anatomic sites: the pyriform sinuses (bilateral), the postcricoid mucosa, and the…