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Related Concept Videos

Encephalitis l: Introduction01:19

Encephalitis l: Introduction

Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Encephalitis ll: Pathophysiology01:26

Encephalitis ll: Pathophysiology

Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
Hepatic Encephalopathy01:29

Hepatic Encephalopathy

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

Updated: Jun 24, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
09:57

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Published on: September 20, 2024

[Paraneoplastic limbic encephalitis: a difficult-to-diagnose condition].

M Ramos-Rivas1, G Rojas-Velasco, R Acuña-Hidalgo

  • 1Facultad Mexicana de Medicina, Universidad La Salle, Tlalpan, Mexico. melva_r2@hotmail.com

Revista De Neurologia
|March 18, 2009
PubMed
Summary

Paraneoplastic limbic encephalitis is a rare neurological condition often mistaken for psychiatric disorders. Early diagnosis and treatment are crucial to prevent irreversible brain damage.

Related Experiment Videos

Last Updated: Jun 24, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
09:57

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Published on: September 20, 2024

Area of Science:

  • Neurology
  • Oncology
  • Immunology

Context:

  • Paraneoplastic syndromes are distant manifestations of cancer, often mediated by tumor-secreted substances.
  • Neurological paraneoplastic syndromes affect a small percentage of cancer patients, with an incidence less than 0.5/100,000 annually.

Purpose:

  • To summarize the key aspects of paraneoplastic limbic encephalitis, including its presentation, diagnosis, and management.
  • To highlight the challenges in diagnosing this rare neurological entity.

Summary:

  • Paraneoplastic limbic encephalitis presents with acute confusion, mood changes, hallucinations, memory loss, and seizures, often developing rapidly.
  • Diagnosis involves imaging, cerebrospinal fluid analysis, and serological tests, though antibody absence doesn't rule out the condition.
  • Treatment combines immune suppression and tumor removal, with tumor resection often being the most effective approach.

Impact:

  • Emphasizes the importance of early diagnosis and intervention to prevent irreversible neuronal damage.
  • Underscores the potential misdiagnosis of paraneoplastic limbic encephalitis as psychiatric conditions.
  • Highlights the need for a multidisciplinary approach involving neurologists and oncologists for optimal patient outcomes.