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Superficial siderosis: diffuse hypointensity outlining the cortex and cranial nerves in the posterior fossa (MRI) (1)

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Axial T2-weighted MRI indicates siderosis of the cranial nerves VII, VIII, and IX from their pontine emergence up to the entry in the inner auditory canal (white arrows) and the cerebellar cortex (white arrowheads). (Source: Artukarslan E, Matin F, Donnerstag F, Gärtner L, Lenarz T, Lesinski-Schiedat A. Cochlea implantation in patients with superficial hemosiderosis. Eur Arch Otorhinolaryngol 2022;279[9]:4363-70. Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)