Clinical Information:

MRI cerebellopontine angle; asymmetrical sensorineural hearing loss

Technique:

Multiplanar, multisequence MRI of the cerebellopontine angle was performed without and with IV contrast including high-resolution images through the course of both VII and VIII cranial nerves.

Comparison:

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Findings:

There is no focal brain parenchymal signal abnormality. In particular, the midbrain and brainstem are normal.

The external acoustic canal, middle ear, vestibular-cochlear apparatus and internal acoustic canals have a normal appearance.

The facial and vestibulocochlear nerves have a normal appearance, with no focal lesion, signal abnormality or abnormal enhancement.

The geniculate ganglion, cochlear component and descending bony component of the facial nerve have a normal appearance bilaterally.

The trigeminal and abducens nerves have a normal appearance.

No high signal is seen in the mastoid air cells or middle ear to indicate fluid.

Conclusion:

Normal MRI of the brain and cerebellopontine angle. No cause for sensorineural hearing loss is identified.