Brown recluse spider bite to the upper lip.

Area of Science:

• Toxicology
• Dermatology
• Emergency Medicine

Background:

• Brown recluse spider (Loxosceles reclusa) bites are common in the south-central US.
• Most bites result in mild, self-limiting reactions.
• Severe reactions, including tissue necrosis and systemic envenomation, are rare but possible.

Observation:

• A 20-year-old female presented with an atypical brown recluse spider bite.
• She developed significant angioedema and cellulitis, necessitating intensive care unit admission.
• The bite site was photographically documented for 24 hours post-envenomation.

Findings:

• The patient received a combination of glucocorticoids, antihistamines, antibiotics, and dapsone.
• Treatment led to complete resolution of angioedema and cellulitis.
• No tissue necrosis or scarring occurred following the bite and subsequent treatment.

Implications:

• This case highlights the potential for severe, atypical reactions to brown recluse spider bites.
• Aggressive management with a multi-drug approach can effectively treat severe envenomations.
• Early intervention may prevent long-term complications like tissue necrosis and scarring.