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Published on: February 5, 2011
Benign focal cerebral vasculitis: case report
J R Berger1, J Romano, M Menkin
1Department of Neurology, University of Miami School of Medicine, FL, USA.
Abstract:
We report a 47-year-old man who presented with partial seizures complicating focal cerebral vasculitis of the right temporal lobe. Excisional biopsy of the mass lesion revealed fibrinoid necrosis of small vessels. These vessels were infiltrated by neutrophils, eosinophils, lymphocytes, and plasma cells. Despite extensive evaluation, no etiology was apparent for the vasculitis. No immunosuppressive agents were administered, and 4 1/2 years after the diagnosis, he remains healthy except for an incongruous left homonymous hemianopia. Follow-up cranial magnetic resonance images revealed only postoperative changes. This case demonstrates that focal lesions and a benign course may represent one end of the spectrum of primary angiitis of the central nervous system.
Insights
This case study highlights a rare instance of focal cerebral vasculitis in a 47-year-old man presenting with partial seizures. The condition showed a benign course, suggesting it may represent a milder form of primary central nervous system vasculitis.
Area of Science:
- Neurology
- Immunology
- Pathology
Background:
- Focal cerebral vasculitis is a rare condition affecting blood vessels in the brain.
- Primary angiitis of the central nervous system (PACNS) encompasses inflammatory conditions of CNS blood vessels.
- Understanding the spectrum of PACNS is crucial for accurate diagnosis and management.
Observation:
- A 47-year-old man presented with partial seizures attributed to focal cerebral vasculitis in the right temporal lobe.
- Excisional biopsy revealed small vessel fibrinoid necrosis with inflammatory cell infiltration (neutrophils, eosinophils, lymphocytes, plasma cells).
- No specific etiology for the vasculitis was identified despite comprehensive investigation.
Findings:
- The patient experienced a benign clinical course over 4.5 years without immunosuppressive therapy.
- The primary neurological deficit was an incongruous left homonymous hemianopia.
- Cranial magnetic resonance imaging showed only postoperative changes, indicating resolution of the active inflammatory process.
Implications:
- This case suggests that focal neurological lesions and an indolent course can be part of the spectrum of primary angiitis of the central nervous system.
- It underscores the importance of considering vasculitis in the differential diagnosis of focal brain lesions, even with atypical presentations.
- The findings may prompt a re-evaluation of diagnostic criteria and treatment strategies for PACNS, particularly for focal variants.
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