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  • Title: [Relationship between callosal lesions and cerebral microhemorrhage in Marchiafava-Bignami disease].
    Author: Uchiyama M, Kasai H, Kurokawa S, Sakae Y, Kinno R.
    Journal: Nihon Arukoru Yakubutsu Igakkai Zasshi; 2014 Oct; 49(5):238-48. PubMed ID: 25651618.
    Abstract:
    Marchiafava-Bignami disease is a rare alcohol-associated disorder. Clinical features include not only disturbed consciousness, dysarthria, tetraparesis, and astasia-abasia as initial symptom but also cognitive deficits and symptoms of interhemispheric disconnection as clinical outcomes. The clinical significance of cerebral microhemorrhage has been recognized in patients with cognitive deficits. We have recently examined the clinical significance of cerebral microhemorrhage in Marchiafava-Bignami disease and demonstrated that demented patients showed higher severity of cerebral microhemorrhage than patients with normal cognitive function. However, the relationship between callosal lesions and cerebral microhemorrhage in Marchiafava-Bignami disease has not been fully examined. The aim of the present study was to clarify the relationship between callosal lesions and cerebral microhemorrhage in Marchiafava-Bignami disease. For this purpose, we report four patients with Marchiafava-Bignami disease. All cases had a history of chronic alcohol abuse and symmetrical lesions in the corpus callosum. Clinical symptoms include not only coma, dysarthria, and astasia-abasia as initial symptom but also dementia as clinical outcomes. Susceptibility-weighted imaging showed asymmetrical hypointense areas in the multiple cortico-subcortical regions, indicating the presence of cerebral microhemorrhage. There were no apparent relationships between the extension of callosal lesion and the severity of cognitive deficits or cerebral microhemorrhage. Our present report indicates that cerebral microhemorrhage, an important. factor for the severity of dementia in Marchiafava-Bignami disease as clinical outcomes, is independent of the callosal lesion.
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