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Here are the most common examples of these four patterns on a chest x-ray (click image
- Multifocal ill-defined ... opacities - Fine Nodular ... Atelectasis #Diagnosis #Clinical ... #Radiology #CXR ... #Patterns #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
- Sarcoidosis ... known as alveolar sarcoidosis ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
This was a consolidation ... due to a pneumonia ... #Clinical #Radiology ... #CXR #Pneumonia ... SilhouetteSign #RadiologyAssistant
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
x-ray there is an ill-defined ... causes of chronic consolidation ... #Clinical #Radiology ... #CXR #AirBronchogram ... #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
usually multiple ill-defined ... The old name is ... #Diagnosis #Radiology ... #Pulmonary #CXR ... Differential #Table #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
Lobar pneumonia ... Organizing pneumonia ... Sarcoidosis - at ... #Radiology #CXR ... #Causes #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
with multifocal consolidations ... diagnosis of chronic consolidation ... #Clinical #Radiology ... #CXR #Peripheral ... OrganizingPneumonia #BOOP #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Cryptogenic organizing pneumonia ... Sarcoidosis end-stage ... : consolidation ... #Clinical #Radiology ... Comparison #Table #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Clinical manifestations ... - Imaging: • CXR ... opacities, Unilateral consolidation ... • HRCT: patchy consolidation ... BOOP #pulmonary #ILD
Sarcoidosis
On a CXR sarcoidosis usually first presents with hilar and mediastinal lymphadenopathy (example).
Parenchymal disease can present
CXR sarcoidosis ... can present as consolidation ... #Clinical #Radiology ... #Nodular #Interstitial ... #RadiologyAssistant