The search for bilateral asymmetry in CBCT images cannot be over stressed. In the three images below a 30 year old male has an incidental finding of a soft tissue opacity 11 x 8 mm in the right external auditory canal.
The adjacent bone does not appear to be eroded or expanded so it could be a benign mass and an ENT referral is needed.
– Dr Douglas K Benn DDS, PhD, Dipl. Dental Radiology (Royal College of Radiologists, England)
Oral and Maxillofacial Radiologist
3610 Leavenworth Court
Omaha, NE 68105-1200 USA