2044 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... attenuation or air-filled ... - Emphysema - Lung ... Radiology #Pulmonary #CTChest
Here another case of hypersensitivity pneumonitis.
There is a mosaic pattern.
Some secundary lobules demonstrate ground-glass opacity due
opacity due to lung ... bronchiolitis with air ... Clinical #Radiology #CTChest
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
lesions than the chest ... abutting the pleura, air-bronchograms ... densities iin the left lung ... cavitation in the right lung ... Radiology #CXR #CTChest
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
and non-affected lung ... black and white lung ... with air-trapping ... Hyperperfused lung ... Radiology #Pulmonary #CTChest
It can be difficult to distinguish these three entities.
There are two diagnostic hints for further differentiation:
-
expiratory scans for air ... in the 'black' lung ... to the 'white' lung ... bronchiolitis with air ... Clinical #Radiology #CTChest
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
the result of air ... or interstitial lung ... Radiology #Pulmonary #CTChest
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
opacity due to lung ... bronchiolitis with air ... Clinical #Radiology #CTChest
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... usually contain air ... Diagnosis #Radiology #CTChest
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
scan, indicating air ... mid and lower lung ... Clinical #Radiology #CTChest
Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Lung Segment Anatomy ... Annotated on Chest ... lang=us #Lung # ... lobes #Segments #Chest ... #CT #CTChest #pulmonary