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Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
Figure 3 HRCT-LUS ... idiopathic pulmonary fibrosis ... arrow); (E) NSIP fibrotic ... bronchiectasis, and honeycombing ... Clinical #Diagnosis #HRCT
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary fibrosis ... particularly at the lung ... A HRCT is needed ... pattern at the lung ... HRCT demonstrated
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Emphysema - Lung ... Bronchiectasis - Honeycombing ... on the basis of HRCT ... Diagram #Comparison #Honeycombing
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis on HRCT ... in interstitial lung ... disease comes from HRCT ... On HRCT there are ... histiocytosis or honeycombing
Diagnostic algorithm for idiopathic pulmonary fibrosis, in part adapted from the ATS/ERS consensus statement. HRCT =
idiopathic pulmonary fibrosis ... HRCT = high-resolution ... = interstitial lung ... idiopathic pulmonary fibrosis ... Idiopathic #Pulmonary #Fibrosis
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
The CXR demonstrates ... preference at the lung ... The HRCT demonstrates ... honeycombing and ... Clinical #Radiology #CXR
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
bronchiectasis, no honeycombing ... result of massive fibrosis ... Clinical #Radiology #HRCT
Ground-glass opacity is nonspecific, but highly significant finding since 60-80% of patients with ground-glass opacity on
ground-glass opacity on HRCT ... potentially treatable lung ... the cases the lung ... usually associated HRCT ... bronchiectasis and honeycombing
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Fibrosis and parenchymal ... The HRCT shows a ... existing irreversible fibrosis ... Clinical #Radiology #CXR ... HypersensitivityPneumonitis #Chronic #Fibrosis
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
UIP with honeycombing ... show very similar HRCT ... In chronic HP fibrotic ... throughout the whole lung ... HypersensitivityPneumonitis #Fibrosis