The following are the high grade salivary gland malignancies, except:
Basal cell adenocarcinoma of salivary glands is an uncommon neoplasm occurring almost exclusively in major salivary glands. It is a low-grade malignant neoplasm, cytologically similar to basal cell adenoma, but is infiltrative and has a small potential for metastasis.
Reference: Shafer’s Textbook of ORAL PATHOLOGY Eighth Edition page no 285
Basal cell adenocarcinoma
Mucoepidermoid carcinoma
Adenoid cystic carcinoma
Salivary duct carcinoma