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Swimmer's Itch

Aka: Swimmer's Itch, Cercarial Dermatitis
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  1. Pathophysiology
    1. Predominately fresh water exposure
      1. Distribution
        1. Northern United States
        2. Canada
      2. Episodic outbreaks related to snail maturation
        1. Bright, warm days of summer induce snail shedding
        2. Most outbreaks occur near shore
    2. Inflammatory reaction to parasitic cercariae (larvae)
      1. Carriers: Snails
      2. Organisms
        1. Non-human schistosomes (parasitic flatworm)
        2. Flukes
      3. Mechanism
        1. Larvae penetrate Epidermis with water evaporation
        2. Larvae die once embedded
        3. Inflammatory reaction depends on sensitization
  2. Symptoms and symptoms
    1. Areas affected limited to exposed areas
    2. Initial Pruritus from acute Urticarial reaction
      1. Pruritus within 1 hour (minimal to intense)
    3. Later papular eruption occurs
      1. First Exposure
        1. Papules within 5 to 13 days
      2. Subsequent Exposure (Sensitized)
        1. Pruritic Papules within hours
        2. Symptoms peak within 2-3 days
        3. Resolution within 7 days
  3. Differential Diagnosis
    1. Seabather's Eruption (limited to bathing suit area)
    2. Aquagenic Pruritus
  4. Management: Symptomatic for Pruritus
    1. Antihistamines
    2. Cool compresses
    3. Sarna or Calamine lotion
    4. Low to medium potency Topical Corticosteroids
  5. Complications
    1. Secondary infection related to excoriation
  6. Prevention
    1. Dry Skin immediately after bathing
  7. Course
    1. Lesions clear completely in 1 to 2 weeks
  8. References
    1. Habif (1996) Clinical Dermatology, 3rd ed, Mosby, 486
    2. Mulvihill (1990) Cutis 46:211-3
    3. Pharis (1997) J Am Acad Dermatol 36:448-59

Cutaneous schistosomiasis (C0546996)

Concepts Disease or Syndrome (T047)
ICD9 120.3
ICD10 B65.3
SnomedCT 86711009, 238534006, 187115002
English CLAM DIGGER ITCH, SCHISTOSOME DERMATITIS, SCHISTOSOMIASIS, CUTANEOUS, SWIMMER ITCH, Schistosoma cercarial dermatit, Infection by cercariae of schistosoma (disorder), cutaneous schistosomiasis (diagnosis), cutaneous schistosomiasis, schistosomiasis dermatitis ('swimmer's itch'), Schistosomiasis cutaneous, Cutaneous schistosoma, swimmer itch, cercarial dermatitis, itch swimmer's, sea bather's eruption, swimmers' itch, itch swimmers, Marine dermatitis, Cercarial dermatitis, Sea bather's eruption, Swimmer's itch, Schistosome dermatitis, Clam digger's itch, Cutaneous schistosomiasis, Infection by cercariae of schistosoma, Swamp itch, Clam-digger's itch, Schistosomal cercarial dermatitis, Swimmers' itch, Cutaneous schistosomiasis (disorder), Sea bather's eruption (disorder), cercarial; dermatitis, clam digger's; itch, cutaneous; schistosomiasis, dermatitis; cercarial, Schistosoma; cercariae, itch; clam digger's, itch; swimmer's, schistosomiasis; Schistosoma cercariae, schistosomiasis; cutaneous, swimmer's itch, Infection by cercariae of schistosoma (disorder) [Ambiguous], Cutaneous Schistosomiasis, Infection by cercariae of Schistosoma
Italian Schistosomiasi della pelle, Schistosomiasi cutanea
Dutch cutane schistosomiasis, Schistosoma; cercariën, cercaria; dermatitis, cutaan; schistosomiasis, dermatitis; cercaria, itch; swimmer's, jeuk; schelpengraver, schelpengraver; jeuk, schistosomiasis; Schistosoma-cercariën, schistosomiasis; cutaan, Cercariën-dermatitis, huidschistosomiasis
French Schistosomiose cutanée, Bilharziose cutanée
German kutane Schistosomiasis, Zerkariendermatitis, Schistosomiase der Haut
Japanese 皮膚住血吸虫症, ﾋﾌｼﾞｭｳｹﾂｷｭｳﾁｭｳｼｮｳ
Czech Kožní schistozomóza
Korean 꼬리유충 피부염
Hungarian cutan schistosomiasis, Cutan schistosomiasis
Spanish dermatitis cercariana, dermatitis del nadador, dermatitis esquistosómica, dermatitis marina (trastorno), dermatitis marina, dermatitis por cercarias, erupción del bañista, esquistosomiasis cutánea (trastorno), esquistosomiasis cutánea, infección por cercarias de esquistosoma (concepto no activo), infección por cercarias de esquistosoma (trastorno), infección por cercarias de esquistosoma, infección por cercarias de schistosoma, prurito de los pantanos, prurito del nadador, Esquistosomiasis cutánea
Portuguese Schistosomíase cutânea
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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