Cause:Bite of any of several Loxosceles sp spiders
Epidemiology⬆⬇
Southwest and lower Mississippe valley
Course⬆⬇
(Nejm 1998;339:379): Minimal inflammation in 1st 24 h then severe inflammation and necrosis over 1 wk, which may need surgical debridement. Many heal w/o drastic results
Lab and Xray⬆⬇
Lab:Culture to r/o community-acquired MRSA
Treatment⬆
Rx:Supportive care, perhaps w Dapsone started in 1st 24 h may prevent necrosis