Parotid Gland Warthin Tumor

**Semantic type:** Neoplastic Process

**Definition:** An adenoma that arises from the parotid gland. It is characterized by an oncocytic, often papillary, epithelial component, dense lymphoid stroma, and cystic spaces. A strong association with smoking has been reported. It typically presents as a painless swelling in the lower portion of the parotid gland.

**Synonyms:** - Parotid Gland Adenolymphoma - Parotid Gland Papillary Cystadenoma Lymphomatosum - Parotid Gland Warthin's Tumor