12 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... - Aspiration - Pulmonary ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... On HRCT there are ... is interstitial lung ... #Diagnosis #Radiology ... #Pulmonary #CXR
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... morphologic findings on HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
surrounded by opacified lung ... edema, severe ILD ... Bronchogram #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Tram Track Sign on Chest CT
 • Parallel, non-tapering airways, extending to the lung periphery.
 •
extending to the lung ... bronchiectasis, CF, ILD ... Track #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... On a chest X-ray ... A HRCT is needed ... HRCT demonstrated ... #Clinical #Radiology
On the left a chest film of a patient with UIP due to IPF.
The findings on
changes in the basal lung ... film with long ... #Clinical #Radiology ... #CXR #CTChest # ... Pneumonitis #Reticular #ILD
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
Subacute stage: - RB-ILD ... show very similar HRCT ... Clinical #Diagnosis #Radiology ... #CTChest #UIP # ... Fibrosis #Mimic #ILD
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... bronchiectasis) #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #Interpretation ... #Algorithm #ILD
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
smoker with RB-ILD ... first think RB-ILD ... #Clinical #Radiology ... #CTChest #RBILD ... RespiratoryBronchiolitis #ILD