polyangiitis


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polyangiitis

 [pol″e-an″je-i´tis]
inflammation involving multiple blood or lymph vessels.

pol·y·an·gi·i·tis

(pol'ē-an'jē-ī'tis),
Inflammation of multiple blood vessels involving more than one type of vessel, for example, arteries and veins, or arterioles and capillaries.

polyangiitis

/poly·an·gi·itis/ (-an″je-i´tis) inflammation involving multiple blood or lymph vessels.

microscopic polyangiitis

A systemic small-vessel vasculitis that primarily affects the kidneys, skin, and lungs of middle-aged men.

Clinical findings
Fever, malaise, myalgia, weight loss, and autoimmunity, including antineutrophil cytoplasmic antibodies (p-ANCA). Skin lesions occur in 30 to 50%, usually presenting as purpura due to leukocytoclastic vasculitis, less commonly as nodules involving the vessels of the dermis and subcutaneous fat and ulcers. The kidney shows rapidly progressive focal and segmental glomerulonephritis.

DiffDx
Polyarteritis nodosa.

pol·y·an·gi·i·tis

(pol'ē-an'jē-ī'tis)
Inflammation of many blood vessels involving more than one type of vessel, e.g., arteries and veins, or arterioles and capillaries.

pol·y·an·gi·i·tis

(pol'ē-an'jē-ī'tis)
Inflammation of multiple blood vessels involving more than one type of vessel.

polyangiitis

inflammation involving multiple blood or lymph vessels.
References in periodicals archive ?
Rapidly progressive pulmonary haemorrhage in a case of microscopic polyangiitis.
Ironically, MMF has been considered as remission maintenance therapy in pulmonary vasculitis because of Wegener granulomatosis and microscopic polyangiitis.
A case of microscopic polyangiitis following mycoplasma infection in a patient with MPO- ANCA positive pulmonary fibrosis.
Food and Drug Administration (FDA) approved Rituxan (rituximab), in combination with corticosteroids, as a new medicine for adults with Wegener's Granulomatosis (WG) and Microscopic Polyangiitis (MPA).
Specifically, the study examined something known as ANCA-associated vasculitis that includes Wegener's granulomatosis and microscopic polyangiitis.
6 from complications of microscopic polyangiitis in Washington, D.
ANCA are present in a high percentage of patients with certain systemic vasculitis syndromes, particularly Wegener's granulomatosis and microscopic polyangiitis (Sneller et al.
While some of these cases had Wegener's granulomatosis, most had a diagnosis of microscopic polyangiitis.
Berthelot et al (22) showed that the activation of endothelial cells in patients with WG and microscopic polyangiitis could be induced by c-ANCA which is a marker autoantibody for WG.
Other vasculitides associated with p-ANCA and c-ANCA include microscopic polyangiitis (MPA), renal-limited vasculitis presenting as pauci-immune crescentic glomerulonephritis, and Churg-Strauss syndrome, as well as other diseases.
Orencia IV data will be presented in juvenile idiopathic arthritis and in mild relapsing granulomatosis with polyangiitis (Wegener's)