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Cryptogenic Organizing Pneumonia (COP) - Summary

Andrew Sanchez M.D. @ASanchez_PS

#Cryptogenic #Organizing #Pneumonia #COP #pulmonary #diagnosis
Cryptogenic Organizing ... ASanchez_PS #Cryptogenic ... #Organizing #Pneumonia
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Cryptogenic Organizing ... Pneumonia (COP) Cryptogenic ... pneumonias Cryptogenic ... Unknown • 6-7 cases ... Cryptogenic
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
• Infectious Causes ... Non-Infectious Causes ... granulomatosis, Cryptogenic ... organizing pneumonia
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
mainly seen in cryptogenic ... organizing pneumonia
More common & convincing pneumonia mimics 

Aspiration pneumonitis, 
Pulmonary vasculitis, 
Acute eosinophilic pneummia,  
Cryptogeric organizing
eosinophilic pneummia, Cryptogeric ... organizing pneumonia
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
in the former case ... this was also organizing ... #CTChest #COP #Cryptogenic ... #Organizing #Pneumonia
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
as a result of organizing ... #CTChest #COP #Cryptogenic ... #Organizing #Pneumonia
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Cryptogenic organizing
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
lobar pneumonia caused ... Other examples are organizing ... OP is organizing ... idiopathic it is called cryptogenic ... Bronchiolitis Obliterans Organizing
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... pneumonia (NSIP), Cryptogenic ... organizing pneumonia ... differential #pulmonary #causes