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[Hereditary cerebral hemorrhage. Dementia with cystatin C amyloidosis]

H Blöndal1, G Guomundsson, E Benedikz

  • 1Inst för anatomi och patologi, Islands Universitet, Reykjavik.

Nordisk Medicin
|January 1, 1990
PubMed

Insights

Hereditary cystatin C amyloidosis (HCCA) causes early-onset cerebral hemorrhages and progressive dementia. Amyloid deposits in cerebral blood vessels explain the neurological damage in HCCA patients.

Area of Science:

  • Neurology
  • Genetics
  • Pathology

Context:

  • Hereditary cystatin C amyloidosis (HCCA) is a rare genetic disorder.
  • Characterized by amyloid deposition in various tissues, including the central nervous system (CNS).
  • Previous studies have linked HCCA to cerebrovascular complications.

Purpose:

  • To describe the clinical presentation and pathological findings of HCCA with cerebral hemorrhage.
  • To investigate the role of cystatin C amyloid in the pathogenesis of dementia and stroke in affected individuals.
  • To propose a more accurate nomenclature for the condition.

Summary:

  • Nineteen cases of HCCA with cerebral hemorrhage were analyzed.
  • Onset of first hemorrhage occurred between ages 20-41, with survival ranging from 10 days to 23 years.
  • Progressive dementia was a key symptom in 17 patients, often accompanied by severe pathological EEG changes.
  • Amyloid infiltration in and around cerebral blood vessels was observed.
  • Cerebral microvascular lesions, hemorrhages, and infarcts were identified as causes of dementia.
  • Amyloid deposits outside the CNS support the broader term Hereditary Cystatin C Amyloidosis.

Impact:

  • Provides a comprehensive description of HCCA, aiding in diagnosis and management.
  • Highlights the significant impact of cerebrovascular pathology on neurological decline in HCCA.
  • Establishes a clearer understanding of the disease's genetic and pathological basis.

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