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Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... are visible, the pattern ... the nodules are diffuse ... #Nodular #Pattern ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
in the nodular pattern ... In most cases small ... #NodularPattern ... #Nodular #Pattern ... Comparison #Diagram #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
four patterns: ... The cystic pattern ... seen and in many cases ... UIP can be suspected ... #Differential #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary ... as a reticular pattern ... with a reticular pattern ... This pattern was ... #Interstitial #Pattern
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
reticular interstitial pattern ... The HRCT demonstrates ... Radiology #CXR #UIP ... #Interstitial #Pattern ... TractionBronchiectasis #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
characterized by diffuse ... The histologic pattern ... aswell as the HRCT ... are diffuse or ... AcuteInterstitialPneumonia #ILD #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... have specific patterns ... morphologic findings on HRCT ... realise, that these patterns ... ILD #Findings #RadiologyAssistant
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 ... the dominant HR-pattern ... perilymphatic or random ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
a patient with DIP ... The HRCT shows diffuse ... and some mosaic pattern ... Radiology #CTChest #DIP ... DesquamativeInterstitialPneumonia #ILD #RadiologyAssistant