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Here are the most common examples of these four patterns on a chest x-ray (click image
on a chest x-ray ... - Multifocal ill-defined ... Interstitial - Reticular ... mass - Solitary Pulmonary ... #Patterns #RadiologyAssistant
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
interstitial pattern ... The HRCT demonstrates ... #CXR #UIP #CTChest ... #Reticular #Interstitial ... #Pattern #Honeycombing
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... histiocytosis or honeycombing ... #Pulmonary #CXR ... Pattern #Differential ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary ... a reticular pattern ... #CXR #UIP #Reticular ... #Interstitial # ... Pattern #Honeycombing
Honeycombing represents the second reticular pattern recognizable on HRCT.
Because of the cystic appearance, honeycombing is also
the second reticular ... on HRCT. ... feature of usual interstitial ... #CTChest #Honeycombing ... #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... in ground glass pattern ... #Pulmonary #CTChest ... #GroundGlass #Differential ... #RadiologyAssistant
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 ... #Pulmonary #HRCT ... #Algorithm #ILD ... #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Diagnosis Framework Reticular ... Lymphangitic Carcinoma, Interstitial ... Hemorrhage, Edema • Consolidation ... #pulmonary #radiology
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
morphologic findings on HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant