Several topics of pulmonary vasculitis and pulmonary hemorrhage syndromes

Abstract

Vasculitis is defined as inflammation of a vessel wall. Hemorrhage is defined as the escape of blood from vessels. If pulmonary vasculitis and pulmonary hemorrhage are directly connected that inflammation of blood vessels leads to rupture and then hemorrhage, the classification of the pulmonary vasculitis and pulmonary hemorrhage syndromes would be simple. There are many schemes for classifying vasculitis, such as McCluskey 1983, Jennette 1997, Vuong 2002, and Saleh 2005. Classifications can be made by etiology, histologic reaction, size and type of vessels, and associated diseases. Recently CHCC1994 is revised to CHCC 2012. Vasculitis and mimics of pulmonary vasculitis includes idiopathic necrotizing vasculitis syndromes, miscellaneous systemic disorders including collagen-vascular diseases, pulmonary hemorrhage syndromes, vascular involvement in lymphoproliferative disorders, pulmonary hypertensive arterial changes, and granulomatous vasculitis. My presentation reviews all over and focuses on pathological features of pulmonary vasculitis and pulmonary hemorrhage syndromes.