small vessel vasculitis - Health Topics
New-onset ANCA-positive small-vessel vasculitis is a rare but possible complication of COVID-19 vaccination. New-onset ANCA-positive small-vessel vasculitis is a rare but possible complication of ... Nature: Neutrophil single-cell analysis identifies a type II interferon-related subset for predicting relapse of autoimmune small vessel vasculitis Neutrophil single-cell analysis identifies a type II interferon-related subset for predicting relapse of autoimmune small vessel vasculitis What is vasculitis?
Understanding the Context
Vasculitis is a disorder in which there are inflamed blood vessels. These may include capillaries, arterioles, venules and lymphatics. There are a wide variety of clinical presentations. There are several types of cutaneous vasculitis.
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Cutaneous vasculitis is associated with systemic vasculitis in a minority of patients. What is a small vessel vasculitis? Small vessel ... Leukocytoclastic vasculitis is a vasculitis of the small vessels and is also described as a hypersensitivity vasculitis. Histology of leukocytoclastic vasculitis Low power view of leukocytoclastic vasculitis gives the pattern of a busy dermis with a superficial and mid perivascular inflammatory pattern (Figure 1).
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What is exercise-induced vasculitis? Exercise-induced vasculitis is a harmless form of cutaneous small vessel vasculitis. It is also called golfer's vasculitis. It is a neutrophilic inflammatory disorder involving the small or medium-sized blood vessels of the skin and subcutaneous tissue. What is urticarial vasculitis? Urticarial vasculitis is a variant of cutaneous small vessel vasculitis.
It is characterised by inflamed and reddened patches or weals on the skin that appears to resemble urticaria, but when the skin is examined closely under a microscope, a vasculitis is found (inflamed blood vessels). Henoch–Schönlein purpura (HSP) is a form of leukocytoclastic or small-vessel vasculitis, most often observed in children. It is sometimes called anaphylactoid purpura. HSP results from inflammation of the small blood vessels in the skin and various other tissues within the body.