T4N2, WHO type III, nonkeratinizing EBV+ nasopharyngeal cancer, status post treatment. Orbits: The globes, ocular adnexa, optic nerves, and orbital fat are unremarkable, without evidence of intraorbital mass lesions. There are post-treatment findings in the nasopharyngeal region, where there is mild soft tissue swelling and associated persistent enhancement of the central skull base, but no measurable residual tumor in the soft tissues. Neck: There is no evidence of significant cervical lymphadenopathy. The thyroid and major salivary glands are unremarkable. There is a right internal jugular venous catheter. The major cervical flow voids are grossly intact. There are secretions and mucosal thickening in the bilateral maxillary and ethmoid sinuses. There is bilateral tympanomastoid opacification. There is fluid within the bilateral mastoid air cells.
1. Post-treatment findings in the nasopharyngeal region without evidence of measurable tumor progression in this area and no evidence of intraorbital lesions. 2. Persistent enhancement of the central skull base is likely related to treatment-effects at the site of previous tumor infiltration.3. No evidence of significant cervical lymphadenopathy.4. Persistent bilateral otomastoid effusions, which may be attributable to Eustachian tube dysfunction and/or mastoiditis.5. Persistent evidence of acute sinusitis.