View source for Scabies

==Background==
*Infestation with the ''Sarcoptes scabiei'' mite
*4-6 week incubation period after initial exposure
**Those previously infected, symptoms begin in 1-3 days (sensitization)
**Type IV hypersensitivity
*Not a reflection of poor hygiene

[[File:ScabiesD08.JPG|thumb|Scabies]]
[[File:Scabies-burrow.jpg|thumb|Scabies burrow at high resolution]]

==Clinical Features==
Must elicit history of symptomatic close contacts (human or animal)

*Infants
**Hyperpigmented nodules, vesiculopustules, papules may be found in axilla and diaper areas
**May be generalized
*Older children / adults
**Generalized eruption w/ linear burrows, papules, pustules
**Predominance in web spaces of the fingers, flexor aspect of the wrists, axillae, groin, nipples, and the periumbilical region
**Pruritus is classically worse at night

*Norwegian scabies in immunocompromised
**Severe disease with diffuse scabies
**Requires multiple treatments

==Differential Diagnosis==
*[[Envenomations, bites and stings|Insect bites]]
*[[Impetigo]]
*[[Atopic dermatitis]]
*[[Drug rash]]
*[[Dermatitis herpetiformis]]

{{Ectoparasite DDX}}

==Diagnosis==
*Clinical diagnosis, based on history and physical exam

==Management==
{{Scabies treatment}}

==Disposition==
*Discharge

==References==
<references/>

[[Category:Dermatology]]
[[Category:Pediatrics]]