Distinct Airway Involvement in Subtypes of End-Stage Fibrotic Pulmonary Sarcoidosis

Sarcoidosis is a systemic granulomatous disease that in most patients affects the lung. Pulmonary fibrotic sarcoidosis is clinically, radiologically, and pathologically a heterogeneous condition. Although substantial indirect evidence suggests small airways involvement, direct evidence currently is lacking.What is the role of the (small) airways in fibrotic sarcoidosis?Airway morphologic features were investigated in seven explant lungs with...