Neuro_MR_IAC: 68 F, abducens palsy after MVA.

MRI INTERNAL AUDITORY CANAL AND TEMPORAL BONES WITH AND WITHOUT CONTRAST:

CLINICAL HISTORY: 67-year-old female with right esotropia status post motor vehicle accident concerning for right cranial nerve VI avulsion.

FINDINGS:

Cerebellopontine angles/IACs: Normal 7th and 8th cranial nerves without evidence of mass or abnormal enhancement.

Fluid spaces of the inner ears: Normal.

Mastoids and middle ears: Normal.

Cisterns: The cisternal portion of the right cranial nerve VI is not visualized.

BRAIN:

Parenchyma: No acute hemorrhage, infarction, mass, or abnormal enhancement Scattered T2/FLAIR cerebral white matter hyperintensities, nonspecific, likely representing chronic small vessel ischemic disease.

Ventricles and extra-axial spaces: Appropriate for age.

Orbits: Outpouching of the posterior right orbit compatible with a staphyloma. Atrophy of the right lateral rectus is again seen. The right globe is medially deviated.

Visualized paranasal sinuses: Clear.

Bones: Normal.

Additional comment: None.

IMPRESSION:

1. The cisternal portion of the right cranial nerve VI is not visualized compatible with avulsion. Redemonstration of sequelae of right cranial nerve VI palsy.

(Traumatic cranial nerve VI avulsion)