45 results
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Lymphangitic Carcinoma, Interstitial ... HiRes #HighRes #Chest ... #pulmonary #radiology
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
spaces with pus, edema ... lung disease (i.e ... #Pulmonary #CTChest ... #GroundGlass #Differential ... #RadiologyAssistant
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
Sign on Chest CT ... DDx: pna, pulm edema ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Galaxy Sign on Chest CT
 • Coalescent granuloma with a central dense mass and tiny peripheral
Galaxy Sign on Chest ... central dense mass and ... progressive massive fibrosis ... #CT #Lung #Pulmonary ... #clinical
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
fluid, fibrous ... pulmonary edema ... Kerley B lines on chest ... #CTChest #Reticular ... #RadiologyAssistant
Here another chest x-ray with interstitial edema and Kerley B lines in a patient with congestive
Here another chest ... edema and Kerley ... The CT shows the ... #Clinical #Radiology ... #CXR #CTChest #
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... lesions than the chest ... The chest film shows ... #Clinical #Radiology ... SepticEmboli #Cavity #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
Is it pus, edema ... Even fibrosis as ... #Pulmonary #CTChest ... Consolidation #Differential ... #RadiologyAssistant
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... Edema, Atelectasis ... Fibrosis, Interstitial ... Hypoxia #hypoxemia #differential
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On a Chest X-Ray ... lung disease and ... detected on a chest ... #Pulmonary #CXR ... #RadiologyAssistant