Left jugulotympanic paraganglioma tumor status post radiation therapy in spring 2015. There is interval decrease in size of the avidly enhancing mass with prominent flow voids centered in the left jugular foramen, which measures up to 28 mm, previously 36 mm. The tumor persistently protrudes into the left middle ear cavity as well, but no mass effect upon the brainstem or cerebellum. There is no evidence of intracranial hemorrhage or acute infarct. There is mild scattered nonspecific cerebral white matter T2 hyperintensity. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits are grossly unremarkable. There is fluid within the right mastoid air cells. There are scattered paranasal sinus retention cysts.
Interval decrease in size of the left jugulotympanic paraganglioma.