Emphysema, Centrilobular Jud W. Gurney, MD, FACR Key Facts Terminology CLE: Enlargement and destruction of respiratory bronchioles within secondary pulmonary lobule CLE most common form of emphysema associated with symptomatic…
Bronchocentric Granulomatosis Jud W. Gurney, MD, FACR Key Facts Terminology Pathologic reaction characterized by bronchocentric necrotizing granulomatous process in which airway wall is replaced by granulomatous tissue and palisaded histiocytes…
Atelectasis, Subpleural Linear Shadow Jud W. Gurney, MD, FACR Key Facts Imaging Findings Subpleural line paralleling chest wall Gravity dependent; will resolve when patient placed in nondependent position Line 1-2…
Cystic Fibrosis Gerald F. Abbott, MD Key Facts Terminology Cystic fibrosis (CF): Hereditary disorder that affects gene regulating chloride transport Accounts for up to 25% of adult cases of bronchiectasis…
Allergic Bronchopulmonary Aspergillosis Gerald F. Abbott, MD Key Facts Terminology Chronic airway inflammation and injury from colonization and sensitization by Aspergillus fumigatus and related species Imaging Findings Central bronchiectasis and…
Bronchiectasis Jud W. Gurney, MD, FACR Key Facts Terminology Irreversible bronchial dilatation usually associated with inflammation of bronchial wall Imaging Findings ↑ Bronchoarterial ratio (signet-ring sign) B/A > 1 not…
Broncholithiasis Jud W. Gurney, MD, FACR Key Facts Terminology Calcified or ossified material within bronchial lumen, usually due to erosion from adjacent lymph nodes Imaging Findings Endobronchial or peribronchial calcified…
Endobronchial Tumor Jud W. Gurney, MD, FACR Key Facts Imaging Findings Air crescent around lesion should suggest endobronchial lesion (also seen with intracavitary lesions) Bronchus sign: Bronchus leading to peripheral…
Saber-Sheath Trachea Aqeel A. Chowdhry, MD Tan-Lucien H. Mohammed, MD, FCCP Key Facts Terminology Trachea in which coronal dimension ≤ 2/3 of sagittal dimension Extrathoracic trachea normal Probably acquired deformity…
