Clinical question: Evaluate IACs left unilateral hearing loss. Signs and symptoms: 46-year-old female with left unilateral hearing loss. Pre and post enhanced MRI of the IACs:Bilateral internal auditory canals are symmetrical and normal anatomical morphology and size.The signal intensity and overall anatomical morphology of the inner ears structures are within normal limits.The signal intensity of bilateral petrous bones and skull base is within normal.There is normal visualization of bilateral cerebellopontine angle cisterns and bilateral neurovascular bundles traversing through the cerebellopontine angles and within the internal auditory canals.There is normal signal intensity and morphology of pons, medulla and bilateral cerebellar hemispheres.Postcontrast images demonstrate no detectable abnormal enhancement of the pons, cerebellar pontine angles, neurovascular bundles or enhancement of the internal auditory canals or the inner ear structures.There is normal signal intensity and enhancement of bilateral cavernous sinuses. There is normal signal intensity, morphology and size of pituitary stock and with normal pattern of enhancement.
Unremarkable pre and post enhanced MRI of the internal auditory canals as detailed.