Male, 43 years old, history of T4 N0 nasopharyngeal adenoid cystic carcinoma status post chemoradiation. T2 hyperintense, mildly enhancing soft tissue centered along the floor of the left sphenoid sinus has not significant changed from the prior exam (see image 16 series 4). Also stable is mild infiltrative T2 hyperintensity and very subtle ill-defined enhancement involving the left nasopharynx, left parapharyngeal space, questionably the left carotid space, and the left prevertebral soft tissues. No new or growing lesions are seen. No evidence of pathologic adenopathy is detected in the neck by size criteria. The salivary glands and thyroid are unremarkable. Thickening along the left middle nasal turbinate and the overlying left ethmoid air cells is similar to prior. The paranasal sinuses are otherwise unremarkable. The left mastoid air cells remain completely opacified and there is persistent soft tissue thickening and subtle enhancement along the left carotid canal and the expected location of the Eustachian tube. Limited intracranial views demonstrate no significant abnormality.
1.Stable soft tissue thickening along the floor of the left sphenoid sinus.2.Stable ill-defined signal abnormality and vague enhancement involving the left nasopharyngeal, parapharyngeal and prevertebral spaces which may reflect treated infiltrative tumor.3.Persistent opacification of the left mastoid air cells.4.No pathologic adenopathy is detected in the neck.