Right nasopharyngeal carcinoma, treated with and radiation and chemotherapy. There are post-treatment findings in the right nasopharynx without definite measurable tumor, although assessment is limited by the lack of contrast. There is interval decrease in size of the defect in the right nasopharyngeal treatment bed and adjacent prevertebral and parapharyngeal spaces, which is occupied, by what may represent scar or granulation tissue. There is no evidence of significant cervical lymphadenopathy based on size criteria. There is persistent diffuse high T2 signal in the central skull base, eccentric to the right, and within the anterior arch of C1. There are denervation changes in the right masticator muscles. There is persistent fluid within the right middle ear and mastoid air cells. The thyroid and major salivary glands are unchanged. There is multilevel degenerative cervical spondylosis. There are also degenerative changes in the right temporomandibular joint. There is moderate mucosal thickening in the bilateral maxillary sinuses. The orbits and imaged intracranial structures are grossly unremarkable.
1. Post-treatment findings in the right nasopharynx and cental skull base with evolution of the necrotic soft tissues in the region of the treatment bed, but no definite gross measurable residual tumor, although the assessment is limited by the lack of intravenous contrast. 2. Degenerative spondylosis of the cervical spine with spinal canal stenosis at C5 and C6.3. Findings suggestive of right Eustachian tube dysfunction.