Twenty-four hours after surgery for acute aortic dissection, a 51-year-old man with alcoholism developed agitation, decreased consciousness, mutism, and upbeat nystagmus on upward gaze. He also showed left-sided weakness with pyramidal signs and spastic limb ataxia. After 4 weeks treatment with thiamine supplementation, his neurologic and general condition improved. MRI findings are shown in the figure.Marchiafava Bignami disease is associated with chronic alcoholism and nutritional deficiency. 1,2 Although etiopathogenesis is unknown, alcohol toxicity and osmotic disorders are in relation with typical corpus callosum demyelination. Other CNS structures such us white matter tracts and middle cerebellar peduncles may be involved, but far less frequently.S. Bellido, MD, I. Navas, MD, M.A. Aranda, MD, R. Ginestal, MD, B. Venegas, MD, Madrid, Spain Author contributions: Dr. Bellido: drafting/revising the manuscript, study concept or design, analysis or interpretation of data. Dr. Navas: drafting/revising the manuscript, study concept or design, analysis or interpretation of data. Dr. Aranda: drafting/revising the manuscript, study concept or design, analysis or interpretation of data. Dr. Ginestal: drafting/revising the manuscript, study concept or design, analysis or interpretation of data. Dr. Venegas: drafting/revising the manuscript, study concept or design, analysis or interpretation of data.The authors report no disclosures relevant to the manuscript. Go to Neurology.org for full disclosures. This article, along with others on similar topics, appears in the
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