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Hydralazine-induced pauci-immune glomerulonephritis: intriguing case series with misleading diagnoses
Faizan Babar1, Jeffery N Posner2, Eugene A Obah3
1Internal Medicine, Greater Baltimore Medical Center, Baltimore, MD, USA; fbabar@gbmc.org.
Abstract:
Hydralazine has been used since the 1950s for the management of hypertension. Evidence for hydralazine-associated vasculitis dates to pre-ANCA (antineutrophil cytoplasmic antibodies) era. This abstract describes two cases of ANCA-positive pauci-immune glomerulonephritis (GN) in challenging scenarios where diagnosis was misconstrued. A comprehensive literature review was done to understand the pathogenesis of drug-induced pauci-immune GN. We have described key diagnostic features that are helpful in distinguishing idiopathic ANCA vasculitis from drug-induced vasculitis. Additionally, we have also described different treatments meant to provide therapy options with the least side effects.
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