Adenolymphoma (Warthin's tumor): A probing entity
This article, published in the Journal of Natural Science, Biology, and Medicine highlights a case of Warthin's tumor of the parotid gland in an elderly male patient.

A 65-year-old male patient came with the chief complaint of swelling below the left ear lobe since six years. Swelling was insidious in onset and gradually increasing up to its present size. On examination, the lesion extended from the left ear lobule to the lower border of the ramus of the mandible superoinferiorly and also extended behind the left ear.

On aspiration, a clear fluid, light brown in color but viscous in consistency was obtained. Based on the history and clinical examination, a provisional diagnosis of Warthin's tumor was given. Ultrasonographic finding revealed a well-defined hypoechoic mass in the lower pole of the left parotid gland. The mass measured about 4.34 × 2.49 × 3.39 cm. The rest of the parotid gland parenchyma was normal and there was no evidence of ductal dilatation. Computed tomography revealed a rounded and well-defined cystic lesion involving the superficial lobe of the left parotid gland.

The sections stained with Hematoxylin and Eosin revealed cystic spaces lined by a papillary epithelial proliferation which was bilayered. The cells of the epithelial lining appeared intensely eosinophilic. At the core of papillary projections, a variable amount of lymphoid tissue with mature lymphocytes was observed.

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