42

Adenoid cystic carcinoma

cytological features:
- cellular smears
- uniform basaloid cells
- characteristic stroma

Differential diagnosis:
Hyallne globules:
- pleomorphic adenoma
- basal cell neoplasms
- epithelial—myoepithelial carcinoma
- polymorphous low-grade adenocarcinoma

Basaloid cells:
- cellular pleomorphic adenoma
- basal cell adonoma and carcinoma
- polymorphous low-grade adenocarcinorna
- eplthellal-myoepilhelial carcinoma