Measuring ANCA Levels in Sputum May Improve EPGA Diagnosis, Management, Study Suggests
Most patients with eosinophilic granulomatosis with polyangiitis (EGPA) test positive for anti-neutrophil cytoplasmic autoantibodies (ANCAs) in sputum samples, even if they show no signs of them in their blood, researchers from Canada and the United States found. These patients have more severe lung involvement, the study shows, suggesting that measuring…