Seabather's eruption: Difference between revisions
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==Background== | ==Background== | ||
{{Skin anatomy background images}} | |||
*Cnidaria larvae get trapped, release toxin | *Cnidaria larvae get trapped, release toxin | ||
*[[Nematocysts]] of the larval forms of sea anemones: Edwardsiella lineata | *[[Nematocysts]] of the larval forms of sea anemones: Edwardsiella lineata | ||
*Thimble jellyfish: Linuche unguiculata | *Thimble jellyfish: Linuche unguiculata | ||
*Not be confused with [[cercarial dermatitis]], which is caused by freshwater schistosomes or coastal water clam diggers | |||
==Clinical Features== | ==Clinical Features== | ||
*[[Rash]] under | [[File:PMC3760923 abd-88-0496-g06.png|thumb|Excoriated papules in areas covered by swimsuit. Box shows Linuche unguiculata, the thimble jellyfish, whose larvae and adult forms caused this dermatitis.]] | ||
*[[Rash]] generally ''under'' the garments worn by bathers and swimmers (where the organisms are trapped after the person leaves the water) | |||
**Versus [[Cercarial dermatitis]], which is occurs on the exposed skin ''outside'' of close-fitting garments | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
{{Marine envenomation DDX}} | |||
{{Travel Skin Conditions DDX}} | {{Travel Skin Conditions DDX}} | ||
== | ==Evaluation== | ||
*Typically a clinical diagnosis | |||
==Management== | ==Management== | ||
*Thoroughly wash and dry bathing clothes. | |||
*Consider oral [[diphenhydramine]] for pruritis. | |||
==Disposition== | ==Disposition== | ||
*Discharge home | |||
*Return precautions for signs of bacterial superinfection of the lesions. | |||
==See Also== | ==See Also== | ||
Latest revision as of 18:14, 11 December 2024
Background
- Cnidaria larvae get trapped, release toxin
- Nematocysts of the larval forms of sea anemones: Edwardsiella lineata
- Thimble jellyfish: Linuche unguiculata
- Not be confused with cercarial dermatitis, which is caused by freshwater schistosomes or coastal water clam diggers
Clinical Features
- Rash generally under the garments worn by bathers and swimmers (where the organisms are trapped after the person leaves the water)
- Versus Cercarial dermatitis, which is occurs on the exposed skin outside of close-fitting garments
Differential Diagnosis
Marine toxins, envenomations, and bites
- Toxins
- Ciguatera
- Scombroid
- Tetrodotoxin (e.g. pufferfish)
- Shellfish poisoning
- Amnesic shellfish poisoning
- Diarrheal shellfish poisoning
- Neurotoxic shellfish poisoning
- Paralytic shellfish poisoning
- Stingers
- Venomous fish
- Cone shell
- Lionfish
- Sea urchins
- Crown-of-Thorns Starfish
- Stonefish
- Other: Catfish, zebrafish, scorpion fish
- Nematocysts
- Coral reef
- Fire coral
- Jellyfish (Cnidaria)
- Portuguese man-of-war
- Sea anemones
- Seabather's eruption
- Phylum porifera (sponges)
- Bites
- Infections
- 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
- Thoroughly wash and dry bathing clothes.
- Consider oral diphenhydramine for pruritis.
Disposition
- Discharge home
- Return precautions for signs of bacterial superinfection of the lesions.