Spider bite-induced erythema multiforme

Abstract Erythema multiforme (EM) is an immune-mediated mucocutaneous eruption characterized by symmetrically distributed, polymorphic targetoid lesions, mostly on the distal parts of the extremities. It occurs mostly in the setting of an infection in certain predisposed individuals. A 30-year-old p...

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Bibliographic Details
Published in:Cutaneous and ocular toxicology 2013-09, Vol.32 (3), p.255-257
Main Authors: Özyurt, Selçuk, Er, Onur, Afsar, Fatma Sule, Ermete, Murat
Format: Article
Language:English
Subjects:
Adult
Erythema Multiforme - etiology
Erythema Multiforme - pathology
Female
Humans
Pregnancy
Skin - pathology
Spider Bites - complications
Spider Bites - pathology
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Summary:Abstract Erythema multiforme (EM) is an immune-mediated mucocutaneous eruption characterized by symmetrically distributed, polymorphic targetoid lesions, mostly on the distal parts of the extremities. It occurs mostly in the setting of an infection in certain predisposed individuals. A 30-year-old pregnant woman was presented with a necrotic erythematous lesion on her right thigh following a spider bite. As she was pregnant for 16 weeks, no systemic medication was given. On the 8th day of the spider bite an erythematous vesicular and targetoid rash was seen on the distal parts of her extremities. Based on the clinical and histopathological findings, lesions were diagnosed as EM. She had not used any medication for 4 months and she gave no prior history of herpetic infection. So her EM lesions were thought to be an ID reaction most probably due to the spider bite. As far as we know, this is the first reported case of EM induced by a spider bite.
ISSN:1556-9527
1556-9535
DOI:10.3109/15569527.2012.751392