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Here are the most common examples of these four patterns on a chest x-ray (click image
mass - Solitary Pulmonary ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology ... #CXR #Consolidation ... #Patterns #RadiologyAssistant
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Sarcoidosis: nodules ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Sarcoidosis end-stage ... : consolidation ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Sarcoidosis: nodules ... Sarcoidosis: nodules ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #Differential #Comparison
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
organizing pneumonia (OP ... granulomatous noduli ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
to look at the pattern ... more than one pattern ... #Diagnosis #Radiology ... #Pulmonary #CXR ... Differential #Table #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
Sarcoidosis - at ... in fact this is nodular ... #Clinical #Diagnosis ... #Radiology #CXR ... #Causes #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Imaging: • CXR ... and GG pattern, ... irregular lines, nodular ... , cavities • HRCT ... #ILD #diagnosis
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 ... : reticular nodular ... (ground-glass, consolidation ... #Radiology #Pulmonary ... #RadiologyAssistant
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
The dominant pattern ... broad differential diagnosis ... PCP would be on top ... #Clinical #Radiology ... #RadiologyAssistant