Table 1. WHO classification of salivary gland tumors

Malignant tumors
 Mucoepidermoid carcinoma
 Adenoid cystic carcinoma
 Acinic cell carcinoma
 Polymorphous adenocarcinoma
 Clear cell carcinoma
 Basal cell adenocarcinoma
 Intraductal carcinoma
 Adenocarcinoma, NOS
 Salivary duct carcinoma
 Myoepithelial carcinoma
 Epithelial-myoepithelial carcinoma
 Carcinoma ex pleomorphic adenoma
 Secretory carcinoma
 Sebaceous adenocarcinoma
 Carcinosarcoma
 Poorly differentiated carcinoma
  Undifferentiated carcinoma
  Large cell neuroendocrine carcinoma
  Small cell neuroendocrine carcinoma
 Lymphoepithelial carcinoma
 Squamous cell carcinoma
 Oncocytic carcinoma
Benign tumors
 Pleomorphic adenoma
 Myoepithelioma
 Basal cell adenoma
 Warthin tumor
 Oncocytoma
 Lymphadenoma
 Cystadenoma
 Sialadenoma papillfereum
 Ductal papilloma
 Sebaceous adenoma
 Canalicular adenoma and other ductal adenomas
Uncertain malignant potential
 Sialoblastoma