Congenital Pulmonary Airway Malformation Melissa L. Rosado-de-Christenson, MD, FACR Key Facts Terminology Abnormal mass of lung tissue with varying degrees of cystic change Imaging Findings Unilateral multilocular thin-walled cysts Air-filled,…
Bronchiolitis, Constrictive Melissa L. Rosado-de-Christenson, MD, FACR Key Facts Terminology Concentric peribronchiolar fibrosis of membranous and respiratory bronchioles Imaging Findings Radiography Normal chest radiographs Hyperinflation CT/HRCT Mosaic pulmonary attenuation Air-trapping…
Respiratory Bronchiolitis Martha Huller Maier, MD Key Facts Terminology RB: Histologic reaction (pathologic in some) found in cigarette smokers Usually asymptomatic RB-ILD: Clinicopathologic syndrome found in heavy smokers RB, RB-ILD,…
Follicular Bronchiolitis Jud W. Gurney, MD, FACR Key Facts Terminology Follicular bronchiolitis to nodular lymphoid hyperplasia (pseudolymphoma), LIP, and lymphoma Imaging Findings Centrilobular nodules, faint Diffuse or lower lung zones…
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…
