Seabather's eruption
Contents
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
- Stingers
- Venomous fish (catfish, zebrafish, scorpion fish, stonefish)
- 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)
- 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