Cortical deafness due to infarct of both Heschl's gyri

Case contributed by Keshaw Kumar
Diagnosis probable

Presentation

Left hemiplegia for last one year and now presenting with hearing loss.

Patient Data

Age: 50 years
Gender: Female

Chronic infarcts in both MCA territories involving both frontotemporal lobes.

The curvilinear T1W hyperintensity in both frontotemporal lobe cortices - cortical necrosis.

MRI brain

Annotated image

The red arrow indicates infarcts involving both Heschl's gyri (primary auditory cortex - Brodmann areas 41 and 42).

The green arrow indicated curvilineal T1 hyperintensity - consistent with cortical laminar necrosis.

Case Discussion

The clinical ENT examination of this patient was unremarkable. The pure tone audiometry revealed bilateral sensorineural hearing loss.

Cortical deafness is a rare disorder that is characterized by the involvement of the auditory cortex (Heschl’s gyrus) bilaterally. Stroke is the most common cause of cortical deafness.

Co-authors:

  1. Dr Deepa N.A. (DM, Neuro-medicine).

  2. Dr Sanaullah Mudassir (DM, Neuro-medicine).

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