10 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
there are four patterns ... reticular, nodular, high ... low attenuation (table ... seen and in many cases ... #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... consolidation - Multifocal ill-defined ... Nodule - Multiple Masses ... Consolidation #Patterns ... #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
pattern (2) 1. ... Non specific interstitial ... HighAttenuation #Pattern ... #Comparison #Table ... #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... have specific patterns ... realise, that these patterns ... #Findings #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... to look at the pattern ... more than one pattern ... lobar pneumonia caused ... #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
BOOP • Type of interstitial ... Unknown • 6-7 cases ... fever, malaise, weight ... consolidation and GG pattern ... BOOP #pulmonary #ILD
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... reticular nodular high ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
Acute interstitial ... outcome in many cases ... The histologic pattern ... AcuteInterstitialPneumonia #ILD ... #RadiologyAssistant
In the images on your left you can appreciate again the spectrum of findings seen in
tissue disease, all cases ... The second (top right ... fine reticular pattern ... NonspecificInterstitialPneumonia #ILD ... #RadiologyAssistant
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Anti-MDA5 (RP-ILD ... Heliotrope • Interstitial ... slow onset and pattern ... weakness • Very high ... statins - probably caused