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Acute urticaria is urticaria (hives) that is present for less than six weeks. It is characterised by weals and sometimes angioedema, and resolves within hours to days.
20 sie 2024 · Urticaria, or hives (sometimes referred to as welts or wheals), is a common disorder, with a lifetime prevalence of approximately 20 percent in the general population [1]. A typical urticarial lesion is an intensely pruritic, erythematous plaque (picture 1).
Introduction. Chronic urticaria (CU) is characterized by recurrent migrating skin lesions, called wheals or hives, angioedema (AE) or both lasting over 6 weeks. Wheals consist of a swelling area of different size and shape with a larger erythema, often pruritic. Lesions usually disappear in 24 h.
Urticaria, commonly known as hives, typically presents as a sharply circumscribed, superficial central swelling of varying sizes and surrounding erythema and is characterized by the skin returning to its normal appearance within 30 min to 24 h. The lesions can vary in size from millimetric to centimeters.
Urticaria refers to a group of conditions in which weals (hives) or angioedema (swelling) develop in the skin. It is very common in children. A weal is a superficial swelling, usually pale or skin-coloured. It is often surrounded by an area of erythema and can last from a few minutes to 24 hours.
What is an exanthem? Exanthem is the medical name given to a widespread rash that is usually accompanied by systemic symptoms such as fever, malaise and headache.
Urticaria is a common skin condition characterised by recurrent, transient, raised pruritic lesions (wheals), more commonly known as “hives”. Occurs due to transient extravasation of plasma into the superficial dermis, as a consequence of mast cell degranulation and histamine release.
