Recurrent base of tongue cancer, status post induction chemotherapy. There is interval decrease in size and enhancement of an infiltrative mass centered in the tongue base, measuring up to approximately 15 mm, previously approximately 20 mm, although precise delineation is limited due to superimposed treatment effects and apparent inflammatory changes in the pharynx. The lymph nodes in the neck are not significantly changed in size or enlarged by size criteria. For example, a left level 2B lymph node measures 6 x 8 mm in axial section, previously also 6 x 7 mm, and a left supraclavicular lymph node measures 9 x 12 mm in axial section, previously also 9 x 12 mm. The thyroid and major salivary glands are unremarkable. There is mild scattered paranasal sinus mucosal thickening. The imaged intracranial structures and orbits are unremarkable.
1. Interval decrease in size and enhancement of an infiltrative mass centered in the tongue base, suggesting treatment response, although precise delineation is limited due to superimposed treatment effects and apparent inflammatory changes in the pharynx. 2. No significant enlargement or change in the neck lymph nodes. 