14 results
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Mosaic Attenuation ... .2016.12.033 #Mosaic ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
Mosaic attenuation ... thromboembolic disease #Diagnosis ... #Radiology #Pulmonary ... #CTChest #MosaicAttenuation ... #Mosaic #Attenuation
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
expiratory scan: the mosaic ... mid and lower lung ... #Clinical #Radiology ... #CTChest #Chronic ... HypersensitivityPneumonitis #Fibrosis #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... in the proper clinical ... #Clinical #Radiology ... #CXR #CTChest # ... SepticEmboli #Cavity #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... , high and low attenuation ... appreciate on a cest ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
80% of cases) or mosaic ... opacity due to lung ... #Clinical #Radiology ... #CTChest #Hypersensitivity ... Centrilobular #RadiologyAssistant
It can be difficult to distinguish these three entities.
There are two diagnostic hints for further differentiation:
-
There are two diagnostic ... penicillamine) #Clinical ... #Radiology #CTChest ... MosaicAttenuation #Mosaic ... #RadiologyAssistant
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
abnormally low attenuation ... the other hand, mild ... #Clinical #Radiology ... #CTChest #Panlobular ... PanlobularEmphysema #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... throughout the whole lung ... #Clinical #Diagnosis ... #Radiology #CTChest ... #RadiologyAssistant
The predominant finding is ground glass opacity (GGO).
There is very subtle traction bronchiectasis, indicating that the
suggestive for the diagnosis ... common interstitial lung ... #Clinical #Radiology ... #CTChest #NSIP ... #RadiologyAssistant