Parotid adenocarcinoma with perineural invasion of facial nerve, and extension towards parapharyngeal space.
Pathology report
Right total parotidectomy:
- adenocarcinoma, not otherwise specified
- high grade
- size 18mm
- perineural invasion: Present
- necrotic tumor at resection margin
- viable tumor <0.5mm from resection margin
- tumor involves one intraparotid lymph node
Incidental adenolymphoma.