Bronchoalveolar Lavage Fluid Cellular Analysis and Radiologic Patterns in Patients with Fibrotic Interstitial Lung Disease

Bronchoalveolar lavage (BAL) cellular analysis is often recommended during the initial diagnostic evaluation of fibrotic ILD. Despite recommendation for its use, between-center heterogeneity exists and supportive data concerning the clinical utility and correlation of BAL findings with radiologic features or patterns remains sparse.