Adenoid Cystic Carcinoma of Trachea: Findings on 18F FDG Positron Emission Tomography-Computed Tomography.

Adenoid cystic carcinoma (ACC) of the trachea is the second most common tumor of trachea after squamous cell carcinomas. It arises from the submucosal layer and predominantly has a rapid locoregional spread. We describe the 18F FDG positron emission tomography-computed tomography findings of a 51-year-old woman, a biopsy-proven case of ACC of trachea who underwent the scan for initial staging.