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Cutaneous small-vessel vasculitis (CSVV) is inflammation of small blood vessels, usually accompanied by small lumps beneath the skin. [1]: 831 [2] The condition is also known as hypersensitivity vasculitis, cutaneous leukocytoclastic vasculitis, hypersensitivity angiitis, cutaneous leukocytoclastic angiitis, cutaneous necrotizing vasculitis and cutaneous necrotizing venulitis, [3]
The result is a leukocytoclastic vasculitis. [2] This results in hypocomplementemia, a low C3 level in serum. [2] They can also cause more reactions, causing the typical symptoms of serum sickness. This is similar to a generalised Arthus reaction. [2]
Inflammation-induced damage to the skin's blood vessels causes palpable purpura. Palpable purpura is the clinical manifestation of leukocytoclastic vasculitis, which can be idiopathic or linked to sepsis, reactions to drugs, connective tissue diseases, cryoglobulinemia, hepatitis C or B infection, or underlying cancers
Necrotizing vasculitis, also called systemic necrotizing vasculitis, [1] is a general term for the inflammation of veins and arteries that develops into necrosis and narrows the vessels. [ 2 ] Tumors , medications, allergic reactions , and infectious organisms are some of the recognized triggers for these conditions, even though the precise ...
Vasculitis is a group of disorders that destroy blood vessels by inflammation. [2] Both arteries and veins are affected. Lymphangitis (inflammation of lymphatic vessels) is sometimes considered a type of vasculitis. [3] Vasculitis is primarily caused by leukocyte migration and resultant damage.
Leukocytoclastic vasculitis; Lichen aureus; Lichen purpuricus; Livedo racemosa; Livedo reticularis; Livedo reticularis with summer ulceration; Livedoid dermatitis; Livedoid vasculitis; Livedoid vasculopathy; Lymphedema praecox; Lymphedema–distichiasis syndrome
On histopathological examination, a biopsy will show leukocytoclastic vasculitis with necrotic changes and granulomatous inflammation (clumps of typically arranged white blood cells) on microscopy. These granulomas are the main reason for the name granulomatosis with polyangiitis, although it is not an essential feature.
Systemic vasculitis is the most common association with RP, ... leukocytoclastic vasculitis, [4] ... In a Mayo Clinic series, the annual incidence was about 3.5 cases ...