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[X-ray scanning in Marchiafava-Bignami disease]
Insights
Computed tomography (CT) scans revealed symmetrical white matter lesions in patients with Marchiafava-Bignami disease. These findings correlate with neuropathological changes, aiding in disease diagnosis.
Area of Science:
- Neurology
- Radiology
- Pathology
Background:
- Marchiafava-Bignami disease is a rare neurological disorder typically associated with chronic alcoholism.
- The acute alcoholic form presents unique diagnostic challenges.
- Understanding the neuroimaging characteristics is crucial for timely diagnosis and management.
Observation:
- CT scans were performed on four patients with acute alcoholic Marchiafava-Bignami disease.
- Patients died between 12 and 50 days post-diagnosis.
- Autopsy confirmed neuropathological findings.
Findings:
- CT scans demonstrated widespread, symmetrical hypodense areas in the hemispheric white matter, predominantly in posterior regions.
- These lesions were often independent of the corpus callosum.
- Pathology revealed corresponding necrotic and demyelinating changes in the centrum ovale.
- In two cases, CT identified linear hypodensities near the frontal horns, correlating with corpus callosum necrosis.
Implications:
- CT imaging can reveal characteristic white matter abnormalities in Marchiafava-Bignami disease.
- Neuroimaging findings correlate significantly with post-mortem neuropathological examination.
- CT scans may aid in the early diagnosis of this rare condition, particularly in its acute alcoholic presentation.
Abstract:
CT scan in 4 patients with Marchiafava-Bignami's disease in its acute alcoholic form, who died after 12, 18, 30 and 50 days respectively, demonstrated large symmetrical bilateral hypodense areas in the hemispheric white substance. These areas were either widespread or more marked posteriorly, and were independent of the corpus callosum. Pathologic examination of the brains showed necrotic regions, often with cavities, or areas of demyelinization of the centrum ovale correlating with the hypodense areas as seen on CT scans. In two cases CT scan further showed regions of linear hypodensity in front of and medial to the frontal ventricular horns which could have corresponded to the corpus callosum necrosis found on the brain sections. CT scan can thus contribute to the diagnosis of Marchiafava-Bignami's disease.