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Acute and recurrent skin ulceration after spider bite.
S J Pincus1, K D Winkel, G M Hawdon
1Department of Pharmacology, University of Melbourne, Parkville, VIC.
The Medical Journal of Australia
|September 4, 1999
Summary
Spider bites can cause skin ulceration, with recurrent issues common. While white-tailed spider bites were suspected in most cases, confirmation was rare, highlighting diagnostic challenges in spider bite injuries.
Area of Science:
- Dermatology
- Toxicology
- Arachnology
Background:
- Spider bites are a potential cause of skin lesions.
- Accurate diagnosis of spider species responsible for envenomation is often challenging.
- Skin ulceration and necrosis are significant clinical outcomes of certain spider bites.
Purpose of the Study:
- To investigate the incidence and characteristics of skin ulceration following spider bites.
- To assess the confirmed etiological agents of spider bite-induced skin ulcerations.
- To determine the recurrence rate of skin ulceration after spider bites.
Main Methods:
- Retrospective review of medical records from January 1992 to July 1998.
- Inclusion criteria: patients with skin ulceration post-spider bite with available follow-up.
- Data collection included patient history, clinical presentation, and physician reports.
Main Results:
- Fifteen cases of spider bite-related skin ulceration were identified.
- White-tailed spider bites were attributed in 14 cases, but only 3 were confirmed.
- One case of skin necrosis was linked to a confirmed black house spider bite.
- Recurrent skin ulceration was observed in 9 out of 15 patients.
Conclusions:
- Spider bites, particularly those suspected to be from white-tailed spiders, can lead to significant skin ulceration.
- Confirmation of the spider species involved in causing skin lesions remains a diagnostic challenge.
- Recurrence of skin ulceration is a notable complication, requiring further investigation and management strategies.