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Loxoscelism.
1Tulane University Medical School, Department of Dermatology, New Orleans, Louisiana 70112.
The American Journal of the Medical Sciences
|October 1, 1992
Summary
Brown recluse spider bites (Loxoscelism) can cause skin necrosis and anemia. Treatment involves pain relief, avoiding early surgery, and dapsone medication.
Area of Science:
- Toxicology
- Dermatology
- Immunology
Background:
- Loxoscelism, caused by brown recluse spider venom, presents with necrotic skin lesions and systemic effects like hemolytic anemia.
- The histological findings of Loxoscelism are similar to a cutaneous Arthus reaction.
- The pathogenesis involves a complex interplay of the complement system, neutrophils, and coagulation cascade.
Purpose of the Study:
- To elucidate the pathological mechanisms of Loxoscelism.
- To outline optimal treatment strategies for brown recluse spider envenomation.
Main Methods:
- Histological examination of affected tissues.
- Review of clinical manifestations and treatment outcomes.
Main Results:
- Loxoscelism shares histological similarities with Arthus reactions.
- Key mediators include complement, neutrophils, and clotting factors.
- Effective management includes analgesics, delayed surgical intervention, and dapsone therapy.
Conclusions:
- Understanding the immune and coagulation pathways is crucial for Loxoscelism.
- Conservative management with analgesics, avoidance of early debridement, and dapsone is recommended.