Hydroid dermatitis

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| specialty = Dermatology

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Hydroid dermatitis is a cutaneous condition that occurs after contact with the small marine hydroid Halecium.{{cite book |author1=James, William D. |author2=Berger, Timothy G. |title=Andrews' Diseases of the Skin: clinical Dermatology |publisher=Saunders Elsevier |year=2006 |isbn=0-7216-2921-0 |display-authors=etal}}{{rp|430}}