23-year-old male with malignant neoplasm of the base of tongue/oral cavity, status post chemoradiation therapy. There has been interval decrease in extent of an infiltrative mass in the posterior right tongue, now appearing less defined with less intense enhancement and T2 hyperintense abnormality. In AP dimension it measures 19 mm (series 1802 image 47), previously 20 mm, although it appears significantly decreased in transverse and craniocaudal bulk, with more irregular margins making measurement difficult. Redemonstrated are posttreatment findings including partial right glossectomy and neck dissection. There is no evidence of significant lymphadenopathy in the imaged portions of the neck. The remaining salivary glands and thyroid are unremarkable. The osseous structures appear to be intact. The imaged intracranial structures are stable. There is a small amount of fluid in bilateral mastoid air cells, unchanged.
There has been interval decrease in extent of an infiltrative mass in the posterior right tongue, now appearing less defined with less intense enhancement and T2 hyperintense abnormality. In AP dimension it measures 19 mm (previously 20 mm), although it appears significantly decreased in transverse and craniocaudal bulk, with more irregular margins making measurement difficult. There is no clinically significant lymphadenopathy.