Just anterior to the epiglottis at the base of the tongue are two bilateral spaces, the Valleculae. These should be symmetrical spaces which are clearly seen on axial sections. However, in the section below there is a soft tissue nodule 8 x 10 mm in the right space.
In the images below, there are two nodules on the left side of the base of the tongue.
The differential diagnosis includes lymphoid hyperplasia (the lingual tonsils are in this region), benign and occasionally malignant tumors. The patient should have an examination by an ENT specialist.
-Dr. Douglas K Benn DDS, PhD
Oral and Maxillofacial Radiologist