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Here are the most common examples of these four patterns on a chest x-ray (click image
- Multifocal ill-defined ... interstitial opacities ... Nodule - Multiple Masses ... Diagnosis #Clinical #Radiology ... #Patterns #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Non specific interstitial ... Sarcoidosis end-stage: consolidation ... #Clinical #Radiology ... Pattern #Comparison #Table ... #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... lobar pneumonia caused ... called cryptogenic (COP ... #Diagnosis #Radiology ... #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Organizing pneumonia (OP ... this is nodular interstitial ... Clinical #Diagnosis #Radiology ... #Causes #RadiologyAssistant
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
bilateral peripheral consolidations ... in the former case ... #CTChest #COP # ... Organizing #Pneumonia #ILD ... #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... of NSIP, UIP, OP ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
with multifocal consolidations ... masses. ... organizing pneumonia (OP ... #Clinical #Radiology ... OrganizingPneumonia #BOOP #RadiologyAssistant
Multifocal
Multifocal consolidations are also described as multifocal ill-defined opacities or densities.
In most cases these are the
In most cases these ... In some cases however ... densities is interstitial ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
Acute interstitial ... diffuse or patchy consolidation ... #Clinical #Radiology ... AcuteInterstitialPneumonia #ILD ... #RadiologyAssistant