Sandbox:DDx HEENT
- 40 yo male smoker
- Slow growing, painless, well circumscribed
- Located at the angle of the mandible
- Cystic spaces surrounded by two uniform rows of cells
- Centrally placed pyknotic nuclei
- Papillary infoldings
- Lymphoid stroma and germinal center formation
- No myoepithelial component
- Bilaterally cystic lesion
- Located posteriorly within the parotidfocal tumour nodulerelatively well defined
- No calcification