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salivary gland
Warthin tumor
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Names
warthin tumor
papillary cystadenoma lymphomatosum
Clinical
second most common benign tumor
usually parotid
Histology
oncocytic lining
2 layers
lymphoid stroma
cysts
papilla
debris
corpora amylacea
calcifications
Ddx
oncocytoma
lack lymphoid
papillary oncocytic cystadenoma
lack lymphoid
lymphoepithelial cyst
lack oncocytes
mucoepidermoid carcinoma
epithelial layer is thicker than 2 layers