<prompt> 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?Glandular hyperophy, secondary to vitamin A deficiencyCystic dilationMikuliczs diseaseWahins tumor  <response>: Papillary cystadenoma lymphomatosum Wahins tumorAdenolymphoma 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 Mikuliczs disease involves chronic inflammation and swelling of the salivary glands, which is benign and usually painless 