While shaving, a 45-year-old teacher notices a marble-sized mass beneath his left ear. The mass is eventually excised, revealing which of the following benign parotid gland lesions?
Correct Answer: Wahin's tumor
Description: Papillary cystadenoma lymphomatosum /Wahin's tumor/Adenolymphoma Exclusively seen in parotid gland Derived from salivary tissue inclusion in lymph node More common in males Associated with smoking Only tumor to show hot spot on TC99m-Peecnate Histopathology Papillary cystic pattern lined with columnar oncocytes and cuboidal cells with marked lymphoid component. Lined by a double layer of neoplastic epithelial cells resting on a dense lymphoid stroma sometimes bearing germinal centers =Mikulicz's disease involves chronic inflammation and swelling of the salivary glands, which is benign and usually painless
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