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Central nervous system involvement in amyloid A type amyloidosis
K Arakawa1, J Kira, T Kobayashi
1Department of Neurology, Faculty of Medicine, Kyushu University, Japan.
Journal of the Neurological Sciences
|October 1, 1996
Summary
This study highlights a rare case of cerebral infarction in a young adult linked to amyloid A (AA) protein deposits. This finding suggests a potential role for AA amyloidosis in young adult cerebrovascular events.
Area of Science:
- Neurology
- Rheumatology
- Pathology
Background:
- Juvenile rheumatoid arthritis is an autoimmune condition.
- Cerebral infarction involves stroke due to blood clot in the brain.
- Amyloidosis is a condition characterized by abnormal protein deposits.
Observation:
- A 38-year-old male with a history of juvenile rheumatoid arthritis presented with recurrent cerebral infarction.
- Gastrointestinal symptoms led to the discovery of amyloid deposits in the colon.
- Further investigations revealed amyloid deposits in the stomach, duodenum, and rectum.
Findings:
- Cerebral infarction was confirmed in the right parieto-occipital region via CT and MRI.
- Immunostaining identified amyloid fibrils composed of amyloid A (AA) protein.
- The patient experienced recurrent headaches and visual field defects.
Implications:
- AA type amyloidosis may be a significant etiological factor in cerebral infarction among young adults.
- This case underscores the importance of considering systemic amyloidosis in young patients with unexplained cerebrovascular events.
- Further research is warranted to elucidate the link between AA amyloidosis and neurological complications.