Right nasopharyngeal carcinoma, treated with and radiation and chemotherapy. There are post-treatment findings in the right nasopharynx with mild right asymmetric pharyngeal mucosal space thickening without measurable residual mass. Rather, there is paucity of enhancement in a large area of the right nasopharyngeal treatment bed and adjacent prevertebral and parapharyngeal spaces, extending towards the internal carotid artery. There is no evidence of significant cervical lymphadenopathy based on size criteria. There are denervations changes in the right masticator muscles. The thyroid and major salivary glands are unchanged. There is persistent asymmetric enhancement within the right mandibular ramus and right parotid gland, which is likely related to treatment effects. There is mild anterolisthesis of C3 on C4 and C4 on C5, as well as cervical spondylosis with at least moderate spinal canal stenosis at C5 and C6 and retrolisthesis of C6 on C7. There are bilateral maxillary sinus retention cysts. There are degenerative changes in the right temporomandibular joint with an associated trace effusion. There is mild diffuse prominent intracranial dural enhancement, including along the clivus.
1. Post-treatment findings in the right nasopharynx and cental skull base without measurable residual tumor. Rather, there is necrotic tissue in the right nasopharyngeal treatment bed and adjacent prevertebral and parapharyngeal spaces, extending towards the internal carotid artery.2. Degenerative spondylosis of the cervical spine with spinal canal stenosis at C5 and C6.3. Findings suggestive of right Eustachian tube dysfunction.