When Labs Are Negative

Abstract

INTRODUCTION: Pulmonary Renal Syndrome (PRS) is characterized by diffuse alveolar hemorrhage (DAH) and glomerulonephritis (GN). PRS is usually associated with antibody-mediated vasculitis. PRS from ANCA negative vasculitis is a rare entity and has a fulminant course without treatment. Due to the paucity of cases, there is no established treatment strategy so far.