TY - CHAP M1 - Book, Section TI - Hypersensitivity Vasculitis A1 - Stone, John H. A2 - Stone, John H. PY - 2021 T2 - Current Diagnosis & Treatment: Rheumatology, 4e AB - Small-vessel vasculitis of the skin, often accompanied by little or no apparent involvement of other organs.Known by a variety of other names, including cutaneous leukocytoclastic angiitis.Precipitants, such as medications and infections, are often identifiable, but approximately 40% of cases have no definable cause.Primary forms of vasculitis, such as IgA vasculitis, Henoch-Schönlein purpura, microscopic polyangiitis, and granulomatosis with polyangiitis, must be excluded. Similarly, well-recognized forms of secondary vasculitis, such as mixed cryoglobulinemia, must also be eliminated from the differential diagnosis.Most cases are self-limited if the precipitant can be identified and removed. Glucocorticoids or other medications are required in some cases. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1180197594 ER -