15 results
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... peripheral areas of ground ... both areas of ground ... Radiology #HRCT #CTChest ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... centrilobular nodules of ground-glass ... Radiology #Pulmonary #CTChest ... #Nodular #Pattern ... #Differential #Comparison
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... pneumonitis (NSIP): ground ... Radiology #HRCT #CTChest ... HighAttenuation #Pattern ... #Comparison #Table
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity pneumonitis: ill ... Radiology #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
a heterogenous group ... have specific patterns ... realise, that these patterns ... Radiology #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
On the left two different patients with similarl HRCT findings.
The left one is a smoker with
smoker with RB-ILD ... in severity of ground ... Clinical #Radiology #CTChest ... #RBILD #Comparison ... HypersensitivityPneumonitis #ILD
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... high attenuation (ground-glass ... Pulmonary #HRCT #CTChest ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
pneumonitis are: ill-defined ... cases) or mosaic pattern ... combination of patchy ground-glass ... There are ill-defined ... Clinical #Radiology #CTChest
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
diffuse areas of ground-glass ... and some mosaic pattern ... Clinical #Radiology #CTChest ... DesquamativeInterstitialPneumonia #ILD
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Kerley B lines), ground-glass ... Radiology #HRCT #CTChest ... #Reticular #Pattern ... #Comparison #Table