Although spider bites can produce dermonecrotic wounds, the differential diagnosis of such lesions is extensive. Most of the conditions in the differential are far more common than spider bites. Thus, we suggest that you approach the complaint of a "spider bite" with a skeptical eye. Here we describe the clinical features of spider bites and summarize the treatment options. We also examine the ...

Although spider bites can produce dermonecrotic wounds, the differential diagnosis of such lesions is extensive. Most of the conditions in the differential are far more common than spider bites. Thus, we suggest that you approach the complaint of a "spider bite" with a skeptical eye. Here we describe the clinical features of spider bites and summarize the treatment options. We also examine the ...

Brown recluse spiders (Loxosceles reclusa) are responsible for virtually all documented cases of spider bites leading to significant necrosis. The actual spider bite often goes unnoticed for as long as 4 to 6 hours, which makes diagnosis and, therefore, appropriate treatment, difficult. The spider bite generally results in either a necrotic wound or systemic symptoms that can lead to hemolysis....

Spider bite is common, but most spider bite is minor and causes nothing more than local irritation. Bites from brown recluse spiders (Loxosceles reclusa) result in several clinical manifestations, they possess a venom capable of causing painful, disfiguring necrotic ulcers and, uncommonly, severe systemic effects[1-3]. The diagnosis of a spider bite is typically made on historical and epidemiol...

Some of the world's most dangerous spiders have been certified in some areas of Iran. Spider bites are common in some geographical areas, and are sporadic in some regions. Spider bites can be classified as latrodectism or loxoscelism. If the patient had not seen the spider, the clinical manifestations of latrodectism could be easily mistaken for other types of bite or sting; or an infectious di...

There are more than 30,000 species of spiders, most of which cannot inflict serious bites to humans because of their delicate mouthparts and impotent or prey-specific venoms. However, some spiders produce toxic venoms that can cause skin lesions, systemic illnesses, and neurotoxicity. One of the more common bites is inflicted by the widow spiders (Latrodectus species). A bite from a widow spide...

BACKGROUND Spider bite is a subject of much medical mythology with prevalent fears that spiders cause severe envenoming, with neurotoxic effects or necrotic ulcers. Clinical experience and small studies suggest otherwise, but this has not been confirmed by prospective studies of bites by identified spiders. AIM To describe the clinical effects of bites by accurately identified spiders, and de...

This report presents a case of a ten-years-old girl, who suffered myocardial ischemia following by “black widow” spider bite. A few minutes after the bite, her parents saw a small, black and shiny lesion in insect bite. The clinical signs began about 3-4 hours after the bite. The venom of the Latrodectus mactans “black widow” is toxic, resulting about 5-6 % fatality rate. The case of a black wi...

This study compiled 33 verified spider bites from the state of Oregon (USA). The initial goal was to amass a series of bites by the hobo spider to assess whether it possesses toxic venom, a supposition which is currently in a contested state. None of the 33 bites from several spider species developed significant medical symptoms nor did dermonecrosis occur. The most common biters were the yello...