1. 11 x 8 mm right temporal bone retrolabyrinthine enhancing mass with associated increased blood flow, most likely endolymphatic sac tumor. There is intrinsic high T1 signal within the right vestibule and semicircular canals, suggestive of intralabyrinthine extension versus hemorrhage. Consider further imaging with MRI of the internal auditory canals and dedicated high-resolution CT of the temporal bone.
(Endolymphatic sac tumor)
Study description: MR IAC Temporal Bone with and without Contrast