Search results
Results from the WOW.Com Content Network
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.
Autoimmune urticaria, also known as chronic autoimmune urticaria, is a type of chronic urticaria characterized by the presence of autoantibodies in the patient's immune system that target the body's own mast cells, leading to episodes of hives (urticaria).
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.
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.
Physical urticaria is a distinct subgroup of urticaria (hives) that are induced by an exogenous physical stimulus rather than occurring spontaneously. [1] There are seven subcategories that are recognized as independent diseases. [2] [3] Physical urticaria is known to be painful, itchy and physically unappealing; it can recur for months to ...
Aquagenic urticaria differs from aquagenic pruritus, in which contact with water evokes intense itching without visible hives or rash. [18] [19] [20] Once known as a separate, rare disease, aquagenic urticaria is now considered a subtype of general urticaria. [21] The first case was reported by Walter B Shelley et al. in 1964. [22]
Her urticaria or hives were "sporadic and transient and do not seem to be triggered by any particular exposure nor are they associated with other symptoms" and respond well to antihistamine treatment.
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.