8 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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- Lung cysts (LAM ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Honeycombing 4. ... Centrilobular emphysema ... #Clinical #Radiology ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... ; smoking history ... Honeycombing. 4. ... #Clinical #Radiology ... Cystic #Pattern #Comparison
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation ... bronchiectasis, no honeycombing ... result of massive fibrosis ... #Clinical #Radiology ... HighAttenuation #Pattern #Comparison
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... associated pulmonary ... #Clinical #Diagnosis ... #Radiology #CTChest ... Emphysema #Comparison
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
walls composed of fibrous ... and subpleural lung ... from paraseptal emphysema ... #Diagnosis #Radiology ... #Pulmonary #Honeycombing
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
UIP with honeycombing ... centrilobular emphysema ... #Clinical #Diagnosis ... #Radiology #CTChest ... #UIP #Comparison
It can be difficult to distinguish these three entities.
There are two diagnostic hints for further differentiation:
-
right with the pulmonary ... penicillamine) #Clinical ... #Radiology #CTChest ... MosaicAttenuation #Mosaic #Attenuation ... #Comparison #RadiologyAssistant