title: Repeated hand urticaria due to contact with fishfood.
abstract: BACKGROUND
  The etiology of urticaria is often difficult to determine. However, in case of repeated circumstance-connected urticaria, the reason may be easily clarifyable.
  
  
  METHODS
  A 51-year-old healthy woman repeatedly experienced occupational hand urticaria when handling fish food. An unexpected reason for the urticaria was found in that the fishfood contained histamine as a "contaminant".
  
  
  CONCLUSIONS
  In fishfood batches, biological degradation can produce histamine and possibly other toxic substances that can lead to occupational health problems.
authors.affiliation: Department of Dermatology, University of Kuopio, Finland. rauno.harvima@uku.fi
authors.forename: R J
authors.initials: RJ
authors.lastname: Harvima
authors.forename: L
authors.initials: L
authors.lastname: Tuomisto
authors.forename: T
authors.initials: T
authors.lastname: Husman
mesh_terms: D000818:Animals; D001673:Biodegradation, Environmental; D003386:Brachyura; D009783:Dermatitis, Occupational / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control; D005260:Female; D005396:Fish Products / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D017575:Gloves, Protective; D006229:Hand Dermatoses / Q000139:chemically induced* / Q000175:diagnosis / Q000517:prevention & control; D006632:Histamine / Q000009:adverse effects*; D006636:Histamine Release; D006801:Humans; D008875:Middle Aged; D016273:Occupational Exposure / Q000009:adverse effects*; D011852:Radioallergosorbent Test; D012882:Skin Tests; D014581:Urticaria / Q000139:chemically induced* / Q000175:diagnosis / Q000517:prevention & control
chemical_list: D006632:Histamine