▪ Pleomorphic Adenoma Pleomorphic adenoma (PA), also called benign mixed tumor or mixed tumor, is a benign salivary gland neoplasm composed of ductal epithelial and myoepithelial cell proliferations set within a mesenchymal stroma. This tumor displays remarkable histomorphologic diversity, including…
■ Developmental Lesions, Including Heterotopia and Oncocytosis Salivary glands are composed of three paired major glands—the parotid, submandibular, and sublingual—and approximately 1000 minor seromucous glands that are distributed throughout the sinonasal tract, oral cavity, pharynx, larynx, and lower respiratory tract.…
Introduction Squamous cell carcinoma (SCC) of the upper aerodigestive tract (UADT) is the most common malignant neoplasm of the mucosal lining of the upper food and air passages. The estimated worldwide global annual burden of 630,000 new patients diagnosed resulting…