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Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Cryptogenic Organizing ... Cryptogenic ... Cryptogenic ... OP considered cryptogenic ... Cryptogenic
Cryptogenic Organizing Pneumonia (COP) - Summary

Andrew Sanchez M.D. @ASanchez_PS

#Cryptogenic #Organizing #Pneumonia #COP #pulmonary #diagnosis
Cryptogenic Organizing ... Pneumonia (COP) ... ASanchez_PS #Cryptogenic ... #Organizing #Pneumonia
More common & convincing pneumonia mimics 

Aspiration pneumonitis, 
Pulmonary vasculitis, 
Acute eosinophilic pneummia,  
Cryptogeric organizing
common & convincing pneumonia ... Acute eosinophilic pneummia ... , Cryptogeric ... organizing pneumonia ... PIP), Fungal pneumonia
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
mainly seen in cryptogenic ... organizing pneumonia ... chronic eosinophilic pneumonia
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Idiopathic Interstitial Pneumonias ... (NSIP), Cryptogenic ... organizing pneumonia ... Acute interstitial pneumonia ... • Eosinophilic pneumonia
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Slow-resolving pneumococcal pneumonia ... Pneumocystis jiroveci pneumonia ... granulomatosis, Cryptogenic ... organizing pneumonia ... embolism, Lipid pneumonia
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
of organizing pneumonia ... #CTChest #COP #Cryptogenic ... #Organizing #Pneumonia
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Non-Resolving Pneumonias ... - Cryptogenic ... #NonResolving #Pneumonia
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
instance a lobar pneumonia ... streptococcus pneumoniae ... are organizing pneumonia ... is organizing pneumonia ... idiopathic it is called cryptogenic
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
also organizing pneumonia ... #CTChest #COP #Cryptogenic ... #Organizing #Pneumonia