From your report, it appears as though, the adenoid
asymmetry is probably artefactual (due to the head being tilted). Adenoid enlargement is usually due to some infection, etc. and tumors in this region are uncommon. Also, a tumor (referred to as mass in your report) usually appears bright on contrast CT. Finally, your ENT surgeon can easily visualize this region on examination and can rule out a tumor.
The retention cyst
or polyp in the maxillary sinus can be differentiated by doing CT scan
in a different position (cyst will move). However, if you don't have any symptoms for sinusitis
, there is no need for repeating the scan.
Overall, it doesn't appear as though you have anything to worry about. Just consult your local ENT specialist