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Chronic spontaneous urticaria, despite its cause being unknown, is linked to a higher prevalence of autoimmune diseases, and is often worsened by triggers like stress, infections, certain foods, or nonsteroidal anti-inflammatory drugs. The hives and angioedema seen in CSU is thought to be linked to the degranulation of skin mast cells.
However, the understanding of urticaria as an autoimmune condition is a relatively recent development in medical history. [14] The term autoimmune urticaria refers to a subset of chronic spontaneous urticaria (CSU) cases where the immune system appears to play a significant role. This understanding began to evolve in the mid to late 20th ...
Hives including chronic spontaneous hives can be a complication and symptom of a parasitic infection, such as blastocystosis and strongyloidiasis among others. [ 11 ] The rash that develops from poison ivy , poison oak , and poison sumac contact is commonly mistaken for urticaria.
Urticarial vasculitis (also known as "chronic urticaria as a manifestation of venulitis", "hypocomplementemic urticarial vasculitis syndrome", "hypocomplementemic vasculitis" and "unusual lupus-like syndrome") [1] is a skin condition characterized by fixed urticarial lesions that appear histologically as a vasculitis.
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Urticaria is a vascular reaction of the skin characterized by the appearance of wheals. Angioedema , which can occur alone or with urticaria, is characterized by a well-defined, edematous swelling that involves subcutaneous tissues, abdominal organs, and/or upper airway.
Autoimmune urticaria: Skin IgG against IgE or IgE receptor: Probable Not well established [5] [6] Bullous pemphigoid: Skin Anti-BP180, Anti-BP230 Confirmed 6-30 per 100,000 (mostly older adults) [7] Cicatricial pemphigoid: Mucous membranes, sometimes skin Anti-BP180, Anti-BP230 Confirmed Rare [8] Dermatitis herpetiformis: Skin Anti-tissue ...
The first outbreak of urticaria can lead to other reactions on body parts not directly stimulated, scraped, or scratched. In a normal case, the swelling will decrease without treatment within 15–30 minutes, but, in extreme cases, itchy red welts may last anywhere from a few hours to days.