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Updated: Aug 13, 2026

Induction and Clinical Scoring of Chronic-Relapsing Experimental Autoimmune Encephalomyelitis
Published on: July 4, 2007
Subacute brain-stem encephalitis
Abstract:
A 65 year old man developed progressive signs of pontine and medullary dysfunction with striking bilateral paralysis of lateral gaze, dysarthria, dysphagia, and ataxia. A respiratory death occurred seven months from the onset. Pathological examination revealed focal brain-stem changes of perivascular lymphocytic cuffing, microglial infiltration, glial nodules, and neuronophagia. No underlying malignancy or general disease impairing immunity mechanisms was discovered.
Insights
A rare brainstem dysfunction caused progressive neurological decline, leading to respiratory failure. Autopsy revealed focal inflammation in the brainstem, with no identifiable cause like cancer.
Area of Science:
- Neurology
- Pathology
- Neuroimmunology
Background:
- Brainstem dysfunction can manifest with diverse neurological deficits.
- Understanding the etiology of focal brainstem lesions is crucial for diagnosis and treatment.
Observation:
- A 65-year-old man presented with progressive pontine and medullary dysfunction.
- Symptoms included paralysis of lateral gaze, dysarthria, dysphagia, and ataxia.
- The patient experienced respiratory death seven months after symptom onset.
Findings:
- Pathological examination identified focal brainstem changes.
- These changes included perivascular lymphocytic cuffing, microglial infiltration, glial nodules, and neuronophagia.
- No underlying malignancy or immunodeficiency was detected.
Implications:
- The findings suggest a primary inflammatory or autoimmune process affecting the brainstem.
- Further research is needed to elucidate the specific mechanisms and potential treatments for such conditions.
- This case highlights the importance of considering neuroinflammatory disorders in unexplained brainstem syndromes.
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