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Subacute brainstem angioencephalopathy: a case report and review of the literature

Helmut Rauschka1, Johann Retzl, Ulf Baumhackl

  • 1Department of Neurology, Municipal Hospital Lainz, Wolkersbergenstrasse 1, A-1130 Vienna, Austria.

Journal of the Neurological Sciences
|March 18, 2003
PubMed

Insights

This case study describes a fatal neurological illness in a 69-year-old man, presenting symptoms similar to subacute diencephalic angioencephalopathy (SDAE). Neuropathology revealed brainstem vascular changes, suggesting inflammation and venous obstruction as potential causes.

Area of Science:

  • Neuropathology
  • Neuroimaging
  • Vascular Neurology

Background:

  • A previously healthy 69-year-old male presented with progressive neurological deficits including bulbar signs and ataxic paraparesis.
  • Initial investigations included MRI, CSF analysis, and MRI angiography, which suggested a brainstem tumor.
  • Despite treatment with glucocorticosteroids, the patient's condition deteriorated, leading to death from pneumonia.

Observation:

  • Cerebrospinal fluid (CSF) analysis showed normal cell count but elevated protein levels.
  • Despite suspected brainstem tumor and treatment with intravenous glucocorticosteroids, the patient showed no improvement and died of pneumonia.

Findings:

  • Neuropathological examination identified confluent necrosis and edema in the lower brainstem.
  • Significant fibromuscular thickening and mononuclear infiltration were observed in meningeal vessels, leading to luminal narrowing.

Implications:

  • The pathological features closely resemble subacute diencephalic angioencephalopathy (SDAE), despite the different localization.
  • The case suggests a potential common disease entity with SDAE, highlighting the roles of inflammation and venous outflow obstruction in pathogenesis.

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