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Digital vasculitis following allergic desensitization treatment
G E Cabrera1, G Citera, M Gutiérrez
1Department of Medicine, Louisiana State University School of Medicine, New Orleans.
The Journal of Rheumatology
|November 1, 1993
Summary
Systemic necrotizing vasculitis is a rare complication of immunotherapy. This case report details a patient who developed digital vasculitis after hyposensitization therapy for allergic rhinitis.
Area of Science:
- Immunology
- Dermatology
- Rheumatology
Background:
- Immunotherapy, specifically hyposensitization therapy, is used for allergic rhinitis.
- Systemic necrotizing vasculitis can present with a polyarteritis nodosa-like clinical picture.
- Adverse events from immunotherapy, though uncommon, require careful monitoring.
Observation:
- A patient undergoing hyposensitization for allergic rhinitis developed digital vasculitis.
- The vasculitis manifested as pain, discoloration, cyanosis, and necrosis in the middle three digits of the right hand.
- The patient experienced four episodes of anaphylaxis shortly after desensitization injections in the preceding seven months.
Findings:
- Elevated erythrocyte sedimentation rate and C-reactive protein indicated systemic inflammation.
- Decreased total serum complement levels were observed.
- The clinical presentation strongly suggested digital vasculitis as a complication of hyposensitization therapy.
Implications:
- This case highlights the potential for developing vasculitis, specifically digital vasculitis, as an unusual complication of hyposensitization therapy.
- Physicians should consider vasculitis in patients presenting with suggestive symptoms after immunotherapy.
- Further research may be warranted to understand the mechanisms and incidence of immunotherapy-induced vasculitis.