The name urticaria is derived from the common European stinging nettle Urtica dioica. A weal (or wheal) is a superficial skin-coloured or pale skin swelling, usually surrounded by erythema (redness) that lasts anything from a few minutes to 24 hours. Usually very itchy, it may have a burning sensation.

1. DEFINITION OG FOREKOMST. Urticaria er en gruppe af sygdomme, der er kendetegnet ved udvikling af kvadler og/eller angioødem. Urticaria skal differentieres fra andre medicinske tilstande, hvor kvadler og angioødem kan forekomme, f.eks. anafylaksi, autoinflammatoriske syndromer, urticarial vaskulitis eller bradykinin-medieret angioødem, herunder arvelig angioødem (HAE).

Half of all persons affected by chronic urticaria show, at least temporarily, symptoms of urticaria factitia. Urticaria may enlarge, sometimes developing central pallor, and coalesce with other adjacent lesions. They usually appear in crops and are typically short-lived, expanding and then resolving over a few hours without leaving residual marks on the skin (unless there is trauma from scratching). Urticaria factitia: Rubbing, scratching, or scrubbing the skin. Cold urticaria: Contact between the skin and cold. Heat urticaria: Contact between the skin and warmth/heat. Solar urticaria: UV light or sunlight; Pressure urticaria: Pressure; Vibration urticaria / vibratory angioedema: Vibrations; Other forms are.

It often occurs with other forms of urticaria. The triggering stimulus for itching and/or burning skin and the stripe-like wheals is the impact of shear forces on the skin, which arise, for instance when rubbing, scratching or chafing (Ill. 10, 11). Most frequent physical urticaria with mostly linearly arranged wheals in the area of mechanically irritated skin areas, e.g. chafing spots of clothing.

urticaria is classified as either CSU or chronic inducible urticaria (CIndUs) [2, 4]. Within the group of CIndUs, symptomatic dermographism/urticaria factitia, cold- and heat-induced urticarias, delayed pressure urticaria, solar urticaria, and vibratory angioedema are defined as physical urticarias. Non-physical CIndUs include cholinergic

However, the dermographic reaction in patients with urticaria factitia was not significantly intensified after the stress test. Symptomatic dermographism (syn. urticaria factitia, dermographic urticaria) is the most common subtype of physical urticaria.

Kroniske urticaria inddeles på baggrund af inducerbarhed i henholdsvis kronisk spontan urticaria (CSU), udløst af ukendte eller kendte årsager, samt kronisk inducerbar urticaria (CINDU)(tabel 1) (1). Prævalens Livstidsprævalensen af akut urticaria er 15-20%, medens den for kronisk urticaria er 0,5-1% (6, 7). Patogenese

or workâ a fact which suggests that the mechanism of papular urticaria on such skins is unchanged. Physical urticarias are a unique subgroup of chronic urticaria in which urticarial responses can be reproducibly induced by different specific physical stimuli acting on the skin. These conditions include urticaria factitia/symptomatic dermographism, delayed pressure urticaria, cold contact urticaria, heat contact urticaria, solar urticaria, and vibratory urticaria/angioedema.

Urticaria following slight irritation of the skin. See also: urticaria. Medical Dictionary, © 2009 Farlex and Partners. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content . Link to this page: Youth conference ministries

Medical Dictionary, © 2009 Farlex and Partners. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content . … Define urticaria factitia.

symptomatic dermographism, dermographic urticaria) is the most common subtype of physical urticaria [2, 5, 6]. Dermal and bronchial hyperreactivity in urticarial dermographisrn and urticaria factitia Dermal and bronchial hyperreactivity in urticarial dermographisrn and urticaria factitia Henz, B. M.; Jeep, S.; Ziegert, F. S.; Niernann, J.; Kunkel, G. 1996-03-01 00:00:00 For investigation of a possible relationship between cutaneous and bronchial hyperreactivity, 74 subjects were grouped according to Also known as urticaria factitia (UF), dermatographism is the most common subtype of . physical urticaria.
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The prevalence of mast cells in the skin and in the mucous membranes of the human body explains why urticaria is particularly noticeable in those spots. The activation of the mast cells in the upper (outermost) dermal and mucous membrane layers leads to wheals, while the activation in the lower (deeper) dermal layers leads to deeper swelling (angioedema).

Dermal and bronchial hyperreactivity in urticarial dermographisrn and urticaria factitia Dermal and bronchial hyperreactivity in urticarial dermographisrn and urticaria factitia Henz, B. M.; Jeep, S.; Ziegert, F. S.; Niernann, J.; Kunkel, G. 1996-03-01 00:00:00 For investigation of a possible relationship between cutaneous and bronchial hyperreactivity, 74 subjects were grouped according to Die Quaddeln der Urticaria Factitia entstehen innerhalb von nur 5 Minuten und können bis zu mehreren Stunden andauern. Zur genauen Abklärung Ihrer Beschwerden wenden Sie sich bitte an einen Dermatologen. Hier finden Sie einen Urtikaria-Spezialisten in Ihrer Umgebung. urticaria pigmentosa An idiopathic self-limiting condition characterised by light brown welts, intense itching and hives. By age 2, affected children develop mast cell-rich lesions which produce histamine and cause the typical skin response; rubbed lesions rapidly develop a wheal and systemic symptoms (flushing, headache, diarrhoea, tachycardia, and fainting); younger children may develop Discovering new growths on your skin can cause your mind to race towards worrying about cancer, but take heart.