Reason: h/o nasopharyngeal ca and CRT, compare to previous, measurements pls History: none. There is motion degradation on the current study which limits assessment. Again seen is evidence of perineural tumor spread along the left trigeminal nerve with thickening and enhancement involving the left foramen ovale, left cavernous sinus, and left pterygopalatine fossa not significantly changed since prior. No new tumor involving the left Meckel's cave or cisternal segment of the left trigeminal nerve is appreciated within the limits of a motion degraded study.Tubular T2 hyperintensity in the right retromaxillary fat measures 14 x 5 mm and not significantly changed since 3/12/2016.Abnormal T2 hyperintensity in the left optic nerve is again seen. Diffuse opacification of the left mastoid air cells and middle ear cavity again seen. Mucosal thickening within atelectatic left maxillary sinus again seen.
1. Significantly motion degraded study. No gross interval change in the appearance of the treated perineural tumor involving the left trigeminal nerve.2. Unchanged nonspecific defect in the left greater with of the sphenoid with enhancement.3. Diffuse T2 signal abnormality involving the left optic nerve again seen.4. No appreciable change in tubular T2 hyperintense lesion in the right retromaxillary fat pad, biopsy of which was recently performed.