Cercarial dermatitis: Difference between revisions
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==Background== | ==Background== | ||
*Also known as " | [[File:Cercarial LifeCycle.png|thumb|Life-cycle of swimmers itch.]] | ||
*Also known as "Swimmer's itch" | |||
*Skin exposed to freshwater schistosomes or coastal water clam diggers itch | *Skin exposed to freshwater schistosomes or coastal water clam diggers itch | ||
*Cercaria (non-human schistisomes) | *Cercaria (non-human schistisomes) | ||
*Not be confused with [[ | *Not be confused with [[Seabather's eruption]] (caused by the larval stage of cnidarians (e.g., jellyfish)) | ||
{{Dermatitis types}} | {{Dermatitis types}} | ||
==Clinical Features== | ==Clinical Features== | ||
*Occurs on the exposed skin outside of close-fitting garments | [[File:Cercarial dermatitis lower legs.jpg|thumb|Cercarial dermatitis on lower legs, four days after spending a day in the shallows of a lake.]] | ||
**Versus [[Seabather's eruption]], which is generally under the garments worn by bathers and swimmers (where the organisms are trapped after the person leaves the water) | *Occurs on the exposed skin ''outside'' of close-fitting garments | ||
**Versus [[Seabather's eruption]], which is generally ''under'' the garments worn by bathers and swimmers (where the organisms are trapped after the person leaves the water) | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
{{Travel Skin Conditions DDX}} | {{Travel Skin Conditions DDX}} | ||
== | ==Evaluation== | ||
*Typically a clinical diagnosis | |||
==Management== | ==Management== | ||
Latest revision as of 14:10, 12 December 2020
Background
- Also known as "Swimmer's itch"
- Skin exposed to freshwater schistosomes or coastal water clam diggers itch
- Cercaria (non-human schistisomes)
- Not be confused with Seabather's eruption (caused by the larval stage of cnidarians (e.g., jellyfish))
Dermatitis Types
- Atopic dermatitis
- Candida dermatitis
- Cercarial dermatitis
- Contact dermatitis
- Dermatitis herpetiformis
- Diaper dermatitis
- Dyshidrotic dermatitis
- Neonatal seborrhoeic dermatitis
- Nummular dermatitis
- Perianal streptococcal dermatitis
- Perioral dermatitis
- Seborrheic dermatitis
- Stasis dermatitis
Clinical Features
- Occurs on the exposed skin outside of close-fitting garments
- Versus Seabather's eruption, which is generally under the garments worn by bathers and swimmers (where the organisms are trapped after the person leaves the water)
Differential Diagnosis
- Papules
- Insect bites
- Scabies
- Seabather's eruption
- Cercarial dermatitis (Swimmer's Itch)
- Macular
- Sub Q Swelling and Nodules
- Ulcers
- Tropical pyoderma
- Leishmaniasis
- Mycobacterium marinum
- Buruli ulcer
- Dracunculiasis (Guinea Worm disease)
- Linear and Migratory Lesions
- Cutaneous larvae migrans
- Photodermatitis
See also domestic U.S. ectoparasites
Evaluation
- Typically a clinical diagnosis
Management
- Supportive
- Antihistamines for pruritus
- +/- topical corticosteroids