User:Mr. Ibrahem/Warthin tumor

Warthin tumor, also known as papillary cystadenoma lymphomatosum, is a non-cancerous tumor of the salivary glands. It generally presents as a round, painless, and slowly growing mass. It typically occurs in the parotid gland though may rarely occur in the mouth, nose, or eyelids. Complications may include facial nerve palsy, and in less than 1% of cases it may become cancerous.

The cause is unknown. Risk factors may include Epstein Barr virus infection, tobacco, autoimmune diseases, ionizing radiation, and chronic inflammation. Diagnosis is by tissue biopsy. Treatment is by surgical removal.

Warthin tumor represents about 2% to 15% of parotid tumors. It occurs most commonly in peoples 60s and 70s. It was first described in 1895 by Hildebrand and was subsequently named after pathologist Aldred Scott Warthin, who described two cases in 1929.