Fig. 3
From: Etiologic spectrum of interstitial lung diseases in Chinese children older than 2 years of age
Characteristic HRCT of chILD in children older than 2 years of age. A1 HRCT of hypersensitivity pneumonitis in a patient showing diffuse bilateral small poorly-defined centrilobular nodules. A2 HRCT of hypersensitivity pneumonitis in another patient showing diffuse bilateral ground-glass opacities with areas of air trapping. B1 HRCT of langerhans cell histiocytosis (LCH) in a patient showing bilateral cysts and nodules. B2 HRCT of LCH in another patient showing bilateral cysts and pneumothorax. C1 HRCT of common variable immunodeficiency (CVID) with granulomatous-lymphocytic interstitial lung disease (GLILD) in a patient showing reticulonodular opacities with bilateral ground-glass macronodular opacities. C2 HRCT of COPA syndrome in a patient showing a lymphocytic intestinal pneumonia (LIP) pattern characterized by bilateral diffuse reticulonodular opacities. D1 and D2 HRCT of methylmalonic acidemia (MMA) and homocysteinemia in a patient showing diffuse bilateral poorly defined ground-glass nodules and enlarged pulmonary artery. E HRCT of cryptogenic organizing pneumonia (COP) in a patient showing bilateral liner opacities and consolidations in peripheral distribution. F HRCT of diffuse alveolar hemorrhage (DAH) in a patient showing bilateral diffuse bilateral ground-glass opacities. G1 and G2 HRCT of a patient with diffuse pulmonary lymphangiomatosis (DPL) showing diffuse bilateral grossly thickened interlobular septal and pleural effusion