A 60-year-old man presents with a right parotid nodule. A 1.5 cm cystic right parotid mass is detected by CT. An FNA of the right parotid mass was performed.
ATYPIA OF UNDETERMINED SIGNIFICANCE (AUS)
Predominantly mucinous cyst contents. See note.
Note: The differential diagnosis includes a range of lesions including ductal cyst and mucocele but a low-grade mucoepidermoid carcinoma cannot be entirely excluded.
The patient had a superficial parotidectomy with an intraoperative frozen section showing MEC.
The final diagnosis was a low-grade mucoepidermoid carcinoma, completely excised.
Patient has been disease-free for 11 years.