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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
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Cryptogenic Organizing ... Pneumonia (COP) Cryptogenic ... pneumonias Cryptogenic ... OP considered cryptogenic ... Cryptogenic
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
mainly seen in cryptogenic ... HRCT #ChestCT #Differential
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Cryptogenic organizing ... Radiology #HRCT #CTChest
More common & convincing pneumonia mimics 

Aspiration pneumonitis, 
Pulmonary vasculitis, 
Acute eosinophilic pneummia,  
Cryptogeric organizing
eosinophilic pneummia, Cryptogeric ... Pneumonia #Mimics #Differential
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Non-Infectious Differential ... granulomatosis, Cryptogenic ... NonInfectious #Differential
Stroke Etiologies
Hemorrhagic (IPH, SAH)
Ischemic
 - Large Vessel Atherosclerosis
 - Cardioembolic: Atrial fib, prosthetic valves, LV aneurysm,
infarcts) - Cryptogenic ... Stroke #causes #differential
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
Clinical #Radiology #CTChest ... #COP #Cryptogenic
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
- Cryptogenic ... diagnosis #pulmonary #differential
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
Clinical #Radiology #CTChest ... #COP #Cryptogenic