Thoracic imaging terms (I)
Download as PPT, PDF6 likes1,233 views
The document presents a glossary of updated terms for thoracic imaging compiled by members of the Fleischner Society, replacing previous glossaries from 1984 and 1996. It includes definitions for various conditions such as bronchiectasis, bronchocele, and centrilobular emphysema, alongside descriptions of imaging patterns like the tree-in-bud pattern. This resource aims to unify the language used in thoracic radiography and computed tomography.
Thoracic imaging terms (I)
- 1. Terms for Thoracic Imaging ..Unifying the language. Part I Dr/Ahmed Bahnassy Consultant Radiologist –RMH. MBCHB-MD-FRCR.
- 2. Members of the Fleischner Society compiled a glossary of terms for thoracic imaging that replaces previous glossaries published in 1984 and 1996 for thoracic radiography and computed tomography (CT), respectively.
- 3. bronchiectasis Bronchiectasis is irreversible localized or diffuse bronchial dilatation, usually resulting from chronic infection, proximal airway obstruction, or congenital bronchial abnormality
- 4. signet ring sign This finding is composed of a ring- shaped opacity representing a dilated bronchus in cross section and a smaller adjacent opacity representing its pulmonary artery, with the combination resembling a signet (or pearl) ring
- 5. bronchocele A bronchocele is bronchial dilatation due to retained secretions (mucoid impaction) usually caused by proximal obstruction, either congenital (eg, bronchial atresia) or acquired (eg, obstructing cancer)
- 6. bronchocentric This descriptor is applied to disease that is conspicuously centered on macroscopic bronchovascular bundles Examples of diseases with a bronchocentric distribution include : sarcoidosis , Kaposi sarcoma , and organizing pneumonia .
- 7. bulla Airspace measuring more than 1 cm—usually several centimeters— in diameter, sharply demarcated by a thin wall that is no greater than 1 mm in thickness. A bulla is usually accompanied by emphysematous changes in the adjacent lung.
- 8. cavity A cavity is a gas-filled space, seen as a lucency or low-attenuation area, within pulmonary consolidation, a mass, or a nodule
- 9. centrilobular emphysema Centrilobular emphysema is characterized by :destroyed centrilobular alveolar walls and enlargement of respiratory bronchioles and associated alveoli
- 10. cyst A cyst is any round circumscribed space that is surrounded by an epithelial or fibrous wall of variable thickness
- 11. mycetoma A mycetoma is a discrete mass of intertwined hyphae, usually of an Aspergillus species, matted together by mucus, fibrin, and cellular debris colonizing a cavity, usually from prior fibrocavitary disease (eg, tuberculosis or sarcoidosis)
- 12. tree-in-bud pattern The tree-in-bud pattern represents centrilobular branching structures that resemble a budding tree. The pattern reflects a spectrum of endo- and peribronchiolar disorders, including mucoid impaction, inflammation, and/or fibrosis