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DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...
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Related Experiment Video

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Isolation of Brain-infiltrating Leukocytes
06:44

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Published on: June 13, 2011

Toxic leukoencephalopathies.

Laura M Tormoehlen1

  • 1Department of Neurology, Indiana University School of Medicine, 545 Barnhill Drive, Indianapolis, IN 46202, USA. laumjone@iupui.edu

Neurologic Clinics
|August 2, 2011
PubMed
Summary
This summary is machine-generated.

Toxic leukoencephalopathy involves brain white matter damage from various exposures. This review covers delayed posthypoxic, heroin inhalation, and posterior reversible encephalopathy syndromes.

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Area of Science:

  • Neurology
  • Toxicology
  • Radiology

Background:

  • Leukoencephalopathy is a neurological condition characterized by white matter changes in the brain.
  • Toxic leukoencephalopathy encompasses diverse exposures and clinical manifestations.
  • Accurate diagnosis relies on detailed patient history, clinical presentation, and imaging.

Purpose of the Study:

  • To review three distinct types of toxic leukoencephalopathy.
  • To highlight diagnostic criteria and clinical features.
  • To provide a comprehensive overview of these specific conditions.

Main Methods:

  • Literature review of toxic leukoencephalopathies.
  • Analysis of diagnostic approaches including clinical, historical, and radiological data.
  • Focus on three well-defined entities.

Main Results:

  • Delayed posthypoxic leukoencephalopathy (including carbon monoxide poisoning sequelae).
  • Heroin inhalation leukoencephalopathy.
  • Posterior reversible encephalopathy syndrome (PRES).

Conclusions:

  • Toxic leukoencephalopathies are a significant group of neurological disorders.
  • Understanding specific syndromes like delayed posthypoxic, heroin-induced, and PRES is crucial for diagnosis.
  • Multifaceted diagnostic evaluation is key to identifying these conditions.