Aspiration
Aspiration Gerald F. Abbott, MD Key Facts Terminology Aspiration Intake of solid &/or liquid materials into airways and lungs Aspiration pneumonia Pulmonary infection caused by aspiration of colonized oropharyngeal secretions…
Sarcoidosis, Fibrotic
Sarcoidosis, Fibrotic Melissa L. Rosado-de-Christenson, MD, FACR Key Facts Terminology Multisystem granulomatous disease Unknown etiology Young and middle-aged adults Frequent involvement of lymph nodes, lung, eye, and skin Imaging Findings…
Wegener Granulomatosis, Lung
Wegener Granulomatosis, Lung Helen T. Winer-Muram, MD Key Facts Terminology Classic Wegener granulomatosis (WG) triad: Sinus, lung, & renal disease Multisystem disease of unknown etiology characterized by necrotizing granulomatous small-vessel…
Lymphocytic Interstitial Pneumonitis
Lymphocytic Interstitial Pneumonitis Jud W. Gurney, MD, FACR Key Facts Terminology Lymphoproliferative disorder ranging from follicular bronchiolitis to low-grade lymphoma Diffuse disease commonly referred to as LIP Focal disease commonly…
Nonspecific Interstitial Pneumonia
Nonspecific Interstitial Pneumonia Jud W. Gurney, MD, FACR Tan-Lucien H. Mohammed, MD, FCCP Key Facts Terminology 1 of the idiopathic interstitial pneumonias, less common than idiopathic pulmonary fibrosis (IPF), but…
Diffuse Alveolar Hemorrhage
Diffuse Alveolar Hemorrhage Tan-Lucien H. Mohammed, MD, FCCP Key Facts Terminology Classifications based on immune status, immune complexes, histology, or presence of glomerulonephritis (pulmonary-renal syndrome) Imaging Findings CT patterns nonspecific;…
Hypersensitivity Pneumonitis, Chronic
Hypersensitivity Pneumonitis, Chronic Jud W. Gurney, MD, FACR Key Facts Terminology Chronic granulomatous lung disease caused by inhalation of variety of organic and chemical antigens Imaging Findings Ground-glass opacities +…
Hypersensitivity Pneumonitis, Acute-Subcute
Hypersensitivity Pneumonitis, Acute-Subcute Jud W. Gurney, MD, FACR Key Facts Terminology Diffuse granulomatous interstitial lung disease caused by inhalation of various antigenic particles (microbes, animal proteins, and low-molecular weight chemicals)…
Asbestosis
Asbestosis Helen T. Winer-Muram, MD Key Facts Terminology Interstitial lung disease due to inhalation of asbestos fibers Imaging Findings Morphology: Fibrosis centered on respiratory bronchioles Lung cancer: Lower zone predominance…
Idiopathic Pulmonary Fibrosis
Idiopathic Pulmonary Fibrosis C. Nicholas Fetko, MD Aqeel A. Chowdhry, MD Tan-Lucien H. Mohammed, MD, FCCP Key Facts Terminology Idiopathic interstitial pneumonias of unknown cause Associated with histologic pattern of…
