MRI-confirmed cochlear artery infarct clinically diagnosed in a patient with sickle cell disease: a case report.

Autor: Risoud, Michaël, Toulemonde, Philippine, Beck, Cyril, Charley, Quentin, Suzzoni, Édouard, Vincent, Christophe, Dubrulle, Frédérique
Předmět:
Zdroj: European Archives of Oto-Rhino-Laryngology; Dec2024, Vol. 281 Issue 12, p6699-6703, 5p
Abstrakt: Purpose: To corroborate the vascular etiology of sudden sensorineural hearing loss (SNHL) utilizing magnetic resonance imaging (MRI). Patient: A 24-year-old male with a history of sickle cell disease experienced sudden SNHL and right horizontal nystagmus, without accompanying vertigo. Intervention: Audiometric evaluation revealed left-sided SNHL, predominantly affecting high frequencies. Video head impulse testing demonstrated isolated dysfunction of the left posterior semicircular canal. An urgent brain MRI identified a recent punctiform ischemic stroke in the frontal region. A subsequent MRI, conducted with a 4-hour delay and post-contrast enhancement, highlighted a hyperintense signal within the left cochlear region and the left posterior semicircular canal. Conclusion: The investigative results substantiate an infarction in the territory of the cochlear artery, precipitated by a vaso-occlusive event, thereby reinforcing the vascular hypothesis of cochleovestibular artery syndrome. This case underscores the congruence between clinical observations and delayed post-contrast MRI findings. [ABSTRACT FROM AUTHOR]
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