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A non-alcoholic Japanese patient with Wernicke's encephalopathy and Marchiafava-Bignami disease
Abstract:
In Japan Wernicke's encephalopathy is not rare, but only one case of Marchiafava-Bignami disease has been reported. In our case, Wernicke lesions were found in the mamillary bodies, septal nuclei, and periventricular regions. Involvement of the septal nuclei is rare in this encephalopathy. A characteristic Marchiafava-Bignami lesion was observed only in the anterior part of the corpus callosum. From the clinicopathologic viewpoint, Wernicke's encephalopathy might have preceded Marchiafava-Bignami disease in our case. To our knowledge, only two cases without a history of alcoholism and both suffering from Wernicke's encephalopathy and Marchiafava-Bignami disease have been documented. However, in both cases Wernicke lesions were atypical, since characteristic lesions were absent in the mamillary bodies and in the regions surrounding the third ventricle and the aqueduct. Ours appears to be the first report on a non-alcoholic patient with typical lesions of both diseases.
Insights
This study reports the first non-alcoholic case of Wernicke's encephalopathy and Marchiafava-Bignami disease with typical lesions in both conditions. The findings suggest Wernicke's encephalopathy may precede Marchiafava-Bignami disease.
Area of Science:
- Neurology
- Pathology
Background:
- Wernicke's encephalopathy (WE) and Marchiafava-Bignami disease (MBD) are rare neurological disorders.
- While WE is not uncommon in Japan, MBD is exceptionally rare, with only one prior reported case.
Observation:
- A unique case presented with Wernicke lesions in the mamillary bodies, septal nuclei, and periventricular regions.
- Marchiafava-Bignami lesions were localized to the anterior corpus callosum.
- Septal nuclei involvement is an uncommon feature of Wernicke's encephalopathy.
Findings:
- The patient, who had no history of alcoholism, exhibited typical clinicopathologic features of both WE and MBD.
- This case is distinguished from two previously documented non-alcoholic cases by the presence of characteristic Wernicke lesions in the mamillary bodies and periventricular regions.
Implications:
- This case represents the first documented instance of a non-alcoholic patient presenting with typical lesions of both Wernicke's encephalopathy and Marchiafava-Bignami disease.
- The findings suggest a potential temporal relationship where Wernicke's encephalopathy may precede Marchiafava-Bignami disease in certain non-alcoholic individuals.
- This report expands the understanding of the clinicopathologic spectrum of these rare neurological conditions.