Related Research Articles
Vasculitis is a group of disorders that destroy blood vessels by inflammation. Both arteries and veins are affected. Lymphangitis is sometimes considered a type of vasculitis. Vasculitis is primarily caused by leukocyte migration and resultant damage.
Panniculitis is a group of diseases whose hallmark is inflammation of subcutaneous adipose tissue. Symptoms include tender skin nodules, and systemic signs such as weight loss and fatigue.
Granulomatosis with polyangiitis (GPA), previously known as Wegener's granulomatosis (WG), is an extremely rare long-term systemic disorder that involves the formation of granulomas and inflammation of blood vessels (vasculitis). It is a form of vasculitis that affects small- and medium-size vessels in many organs but most commonly affects the upper respiratory tract, lungs and kidneys. The signs and symptoms of GPA are highly varied and reflect which organs are supplied by the affected blood vessels. Typical signs and symptoms include nosebleeds, stuffy nose and crustiness of nasal secretions, and inflammation of the uveal layer of the eye. Damage to the heart, lungs and kidneys can be fatal.
Henoch–Schönlein purpura (HSP), also known as IgA vasculitis, is a disease of the skin, mucous membranes, and sometimes other organs that most commonly affects children. In the skin, the disease causes palpable purpura, often with joint pain and abdominal pain. With kidney involvement, there may be a loss of small amounts of blood and protein in the urine, but this usually goes unnoticed; in a small proportion of cases, the kidney involvement proceeds to chronic kidney disease. HSP is often preceded by an infection, such as a throat infection.
Polyarteritis nodosa (PAN), is a systemic necrotizing inflammation of blood vessels (vasculitis) affecting medium-sized muscular arteries, typically involving the arteries of the kidneys and other internal organs but generally sparing the lungs' circulation. Polyarteritis nodosa may be present in infants. In polyarteritis nodosa, small aneurysms are strung like the beads of a rosary, therefore making "rosary sign" an important diagnostic feature of the vasculitis. PAN is sometimes associated with infection by the hepatitis B or hepatitis C virus.
Cryoglobulinemia is a medical condition in which the blood contains large amounts of pathological cold sensitive antibodies called cryoglobulins – proteins that become insoluble at reduced temperatures. This should be contrasted with cold agglutinins, which cause agglutination of red blood cells.
Granuloma faciale is an uncommon benign chronic skin disease of unknown origin characterized by single or multiple cutaneous nodules, usually occurring over the face. Occasionally, extrafacial involvement is noted, most often on sun-exposed areas.
Microscopic polyangiitis is an ill-defined autoimmune disease characterized by a systemic, pauci-immune, necrotizing, small-vessel vasculitis without clinical or pathological evidence of necrotizing granulomatous inflammation.
Pemphigoid is a group of rare autoimmune blistering diseases of the skin, and mucous membranes. As its name indicates, pemphigoid is similar in general appearance to pemphigus, but, unlike pemphigus, pemphigoid does not feature acantholysis, a loss of connections between skin cells.
Erythema elevatum diutinum is a form of vasculitis.
Methotrexate-induced papular eruption appears in patients being treated with methotrexate, such as those with rheumatic disease, presenting with erythematous indurated papules, usually located on the proximal extremities.
Necrotizing vasculitis, also called systemic necrotizing vasculitus (SNV), is a category of vasculitis, comprising vasculitides that present with necrosis.
Cutaneous small-vessel vasculitis (CSVV), also known as hypersensitivity vasculitis, cutaneous leukocytoclastic vasculitis, hypersensitivity angiitis, cutaneous leukocytoclastic angiitis, cutaneous necrotizing vasculitis and cutaneous necrotizing venulitis, is inflammation of small blood vessels, characterized by palpable purpura. It is the most common vasculitis seen in clinical practice.
Acute hemorrhagic edema of infancy is a skin condition that affects children under the age of two with a recent history of upper respiratory illness, a course of antibiotics, or both. The disease was first described in 1938 by Finkelstein and later by Seidlmayer as "Seidlmayer cockade purpura".
Urticarial vasculitis is a skin condition characterized by fixed urticarial lesions that appear histologically as a vasculitis.
Cryoglobulinemic vasculitis is a form of inflammation affecting the blood vessels caused by the deposition of abnormal proteins called cryoglobulins in the blood vessels, in patients affected by mixed cryoglobulinemia, since simple or type 1 cryoglobulinemia does not cause complement activation. Cryoglobulinemic vasculitis affects the skin and causes a rash in roughly 15% of people with detectable circulating cryoglobulin proteins. Additionally, the kidneys may be affected by this form of vasculitis resulting in membranoproliferative glomerulonephritis. Fevers, painful muscles and joints, and peripheral nerve damage are other common manifestations of cryoglobulinemic vasculitis. Due to deposition of complement, low levels of circulating complement factors may be seen.
Vesicular pemphigoid is a cutaneous condition, a clinical variant of bullous pemphigoid, characterized by a dermatitis herpetiformis-like presentation with grouped small tense blisters.
Pemphigoid nodularis is a cutaneous condition that is a variant of bullous pemphigoid that has skin lesions mimicking prurigo nodularis.
Eosinophilic vasculitis is a cutaneous condition characterized by an inflammation of blood vessels and the presence of eosinophils.
References
- ↑ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. p. 470. ISBN 1-4160-2999-0.
 | This dermatology article is a stub. You can help Wikipedia by expanding it. |