urticaria

urticaria
= nettle rash; = hives; n.
an itchy rash resulting from the release of histamine by mast cells. Individual swellings (weals) appear rapidly and resolve spontaneously within hours. Acute urticaria is common and represents an immediate response to such allergens as seafood or strawberries. Chronic urticaria is not an allergic condition and may persist for years. Angio-oedema occurs when the weals involve the lips, eyes, or tongue, which may swell alarmingly and constitute a medical emergency. Urticaria can be prevented by taking antihistamines regularly. Cholinergic urticaria is a condition in which very small weals are brought on by heat, exercise, or emotion; treatment may be with hydroxyzine or ketotifen.

The new mediacal dictionary. 2014.

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  • Urticaria — inducida por antibióticos. La urticaria es una enfermedad de la piel caracterizada por lesiones cutáneas edematosas, de contornos delimitados y con un halo eritematoso, generalmente evanescentes y cambiantes. La urticaria va acompañada,… …   Wikipedia Español

  • urticaria — f. dermat. Reacción vascular que afecta a la dermis superior y que se caracteriza por la aparición en cualquier parte del cuerpo de pápulas rojas de tamaño variable sobre zonas más o menos extensas, fugaces y muy pruriginosas. Las causas que… …   Diccionario médico

  • Urticaria — Ur ti*ca ri*a, n. [NL. See {Urtica}.] (Med.) The nettle rash, a disease characterized by a transient eruption of red pimples and of wheals, accompanied with a burning or stinging sensation and with itching; uredo. [1913 Webster] …   The Collaborative International Dictionary of English

  • Urticarĭa — (lat.), der Nesselausschlag, s.d …   Pierer's Universal-Lexikon

  • Urticarĭa — (lat.), s. Nesselsucht …   Meyers Großes Konversations-Lexikon

  • Urticaria — Urticarĭa (lat.), der Nesselausschlag (s.d.) …   Kleines Konversations-Lexikon

  • Urticaria — vgl. Urtikaria …   Das Wörterbuch medizinischer Fachausdrücke

  • urticaria — Mod.L., from L. urtica nettle, from urere to burn. The native name is nettle rash …   Etymology dictionary

  • urticária — s. f. Erupção cutânea semelhante no prurido ao que produz o contato da ortiga …   Dicionário da Língua Portuguesa

  • urticaria — (Del lat. urtīca, ortiga). f. Med. Enfermedad eruptiva de la piel, cuyo síntoma más notable es una comezón parecida a la que producen las picaduras de la ortiga …   Diccionario de la lengua española

  • urticaria — [ʉrt΄ə ker′ē ə] n. [ModL < L urtica, a nettle] HIVES urticarial adj …   English World dictionary

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