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The Classification & Diagnosis of Granulomatosis with Polyangiitis
Based on the classification system developed by the Chapel Hill Consensus Conference, anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis is defined as a necrotizing vasculitis involving small vessels that is associated with myeloperoxidase (MPO) ANCA or proteinase 3 (PR3) ANCA and displays minimal immune deposits. The mechanism behind the pathogenesis of ANCA-associated vasculitis is not fully…
Case Illustrates the Difficulty Diagnosing Granulomatosis with Polyangiitis
Granulomatosis with polyangiitis (GPA) was first described in the British Medical Journal in 1897 by Scottish otolaryngologist Peter McBride.1 GPA is a relatively rare, systemic necrotizing vasculitis that can make diagnosis challenging. The incidence has been estimated anywhere between two and 12 cases per million.2 GPA mainly affects adults between the ages of 45 and…
Case Report: Hydralazine-Induced ANCA-Associated Vasculitis
Hydralazine has been in use as a treatment for hypertension, most notably in heart failure patients, since 1951.1 The drug is a known cause of autoimmune disease, most specifically hydralazine-induced lupus. Hydralazine-induced lupus occurs in 7–13% of those taking the medication.2-4 It often presents with constitutional symptoms, arthritis/arthralgias, cutaneous lesions, serositis, myalgias and/or hepatomegaly. Features…
Gut Feeling: A Comprehensive Look at the Pathogenesis, Management & Treatment of Inflammatory Bowel Disease
Patients with autoimmune diseases, such as spondyloarthritis, are at risk of developing inflammatory bowel disease. Here are considerations for its management and treatment.