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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.
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.
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.
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 ...
Chronic urticaria is defined as the presence of hives which persist for greater than six weeks. [31] Some of the more severe chronic cases have lasted more than 20 years. A survey indicated chronic urticaria lasted a year or more in more than 50% of those affected and 20 years or more in 20% of them. [32]
ICD-9 chapters; Chapter Block Title I 001–139: Infectious and Parasitic Diseases II 140–239: Neoplasms III 240–279: Endocrine, Nutritional and Metabolic Diseases, and Immunity Disorders IV 280–289: Diseases of the Blood and Blood-forming Organs V 290–319: Mental Disorders VI 320–389: Diseases of the Nervous System and Sense Organs ...
As of 2017 the cause of the disease was not understood. [1] A 2024 review by Braud and Lipsker aimed to "describe what is currently known about the pathogenesis of this peculiar disease, as well as to address its diagnosis and management" and concluded that "physiopathology of Schnitzler syndrome remains elusive" and "the main question regarding the relationship between the autoinflammatory ...
Chronic urticaria (long-term): can develop suddenly and will persist more than six weeks. [6] This type of urticaria is uncommon [6] and occurs in only 0.1% of the population. [7] 20% of people with chronic urticaria report still having problems 10 years after its onset. [7]