• J Neuroimaging · Mar 2014

    Case Reports

    "Ears of the lynx" sign in a marchiafava-bignami patient: structural basis and fiber-tracking DTI contribution to the understanding of this imaging abnormality.

    • Felipe Torres Pacheco, Milena Morais Rego, Jose Iram Mendonça do Rego, and Antonio J da Rocha.
    • Division of Neuroradiology, Santa Casa de Misericórdia de São Paulo, Brazil.
    • J Neuroimaging. 2014 Mar 1;24(2):205-7.

    AbstractThe "ears of the lynx" sign was previously reported as a neuroimaging finding observed in patients with autosomal recessive hereditary spastic paraplegia in association with a thin corpus callosum (ARHSP-TCC). We report a patient with a chronic form of Marchiafava-Bignami disease (MBD) that presented with this imaging feature. Diffusion tensor imaging (DTI) and fiber-tracking data support that this finding is a consequence of the structural derangement, which enlarges a preexisting border zone of the bundles of fibers from the corpus callosum (CC) genu to the forceps minor and anterior corona radiata. Therefore, we assume that despite their pathological differences, damage to the anterior portion of the CC is responsible for the imaging similarities between MBD and ARHSP-TCC.Copyright © 2012 by the American Society of Neuroimaging.

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