cT4a N2c right oral tongue squamous cell carcinoma treated with induction chemo on protocol 12-1712. There is an ill-defined lesion centered in the right oral tongue, with slight extension across the midline, which measures approximately 25 x 30 mm in axial cross-section, previously 30 x 45 mm. There is also interval decrease in size of a necrotic left level 1B lymph node, which measures 10 x 12 mm in axial cross-section, previously 14 x 17 mm, a left level 4 lymph node measures 7 x 10 mm, previously 9 x 12 mm, and a right level 2A lymph node measures 10 x 24 mm, previously 11 x 25 mm., for example. There is a punctate left thyroid cyst. The salivary glands, orbits, and imaged intracranial structures are unremarkable. There are small posterior disc-osteophyte complexes at C5-6 and C5-6 and reversal of the usual cervical lordosis.
Interval decrease in size of the right oral tongue squamous cell carcinoma and associated lymphadenopathy.