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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Honeycombing Most diseases ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... disease comes from ... #Diagnosis #Radiology ... #Pulmonary #CXR ... RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
the left some diseases ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Differential #
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
specific patterns ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
- Chest Radiology ... throughout the lungs ... #Chest #Radiology ... diagnosis #pulmonary ... #CXR #clinical
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
or interstitial lung ... in ground glass pattern ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest ... #RadiologyAssistant
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
with ground glass pattern ... enlargement of pulmonary ... thromboembolic disease ... #Clinical #Radiology ... #CTChest #GGO #
On the left another patient with ground glass pattern in a mosaic distribution.
Again the ground glass
with ground glass pattern ... thromboembolic disease ... #Clinical #Radiology ... #CTChest #GGO # ... Thromboembolism #RadiologyAssistant
Alveolar proteinosis is a rare disease characterized by filling of the alveolar spaces with PAS positive
proteinosis is a rare disease ... suggestive HRCT pattern ... #Clinical #Radiology ... #CTChest #AlveolarProteinosis ... #CrazyPaving #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... without associated pulmonary ... #Clinical #Diagnosis ... #Radiology #CTChest ... Emphysema #Comparison #RadiologyAssistant