16 results
Diagnostic algorithm for idiopathic pulmonary fibrosis, in part adapted from the ATS/ERS consensus statement. HRCT =
HRCT = high-resolution ... computerised tomography; ILD ... = interstitial ... lung disease; IPF ... pneumonitis
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Diseases (ILD) ... Pneumonias: • ... Idiopathic pulmonary fibrosis ... lung disease (RB-ILD ... #differential #
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Smoking related diseases ... bronchiolitis (RB-ILD ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Non specific interstitial ... pneumonitis (NSIP ... result of massive fibrosis ... #HRCT #CTChest ... Pattern #Comparison #Table
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Lung Disease - ... Differential Diagnosis ... Pneumonia - fibrosis ... Chronic Radiation Pneumonitis ... #ILD #Causes #Differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... as seen in fibrosis ... . fibrosis). ... Hypersensitivity pneumonitis ... #GroundGlass #Differential
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
pneumonias (IIPs ... combinations of fibrosis ... listed in the table ... morphologic findings on HRCT ... IdiopathicInterstitialPneumonia #ILD
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
HRCT findings in ... bronchiectasis due to fibrosis ... lymphadenopathy #Clinical #Radiology ... UsualInterstitialPneumonitis #Usual #Interstitial ... #Pneumonitis #ILD
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... lung disease comes ... low attenuation (table ... lung disease and ... #Diagnosis #Radiology
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... Hypersensitivity Pneumonitis ... Subacute stage: - RB-ILD ... show very similar HRCT ... In chronic HP fibrotic