Fluid spaces of the inner ears: Again seen is T1 hyperintense signal within the right-sided vestibule and semicircular canals, which may represent proteinaceous material. No abnormality is seen on the left side.
Mastoids and middle ears: Normal.
Parenchyma: No acute hemorrhage, infarction, mass, or abnormal enhancement.
Ventricles and extra-axial spaces: Appropriate for age.
Visualized paranasal sinuses: Clear.
Additional comment: None.
1. Stable appearance of an 11 x 8 mm retrolabyrinthine mass with increased blood flow most compatible with an endolymphatic sac tumor. Hyperintense T1 signal within the right vestibule and semicircular canals may represent proteinaceous material.
Study description: MR IAC TEMPORAL BONE WITH AND WITHOUT CONTRAST