9 results
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Cryptogenic Organizing ... Pneumonia (COP) ... Imaging: • CXR: Peripheral ... Treatment: • Mild ... #ILD #diagnosis
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
and bilateral peripheral ... as a result of organizing ... Radiology #CTChest #COP ... #Cryptogenic #Organizing ... RheumatoidArthritis #ILD
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Peripheral distribution ... mainly seen in cryptogenic ... organizing pneumonia ... (COP), chronic ... HRCT #ChestCT #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... perihilar (batwing) or peripheral ... OP is organizing ... idiopathic it is called cryptogenic ... (COP).
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
small bilateral peripheral ... this was also organizing ... Radiology #CTChest #COP ... #Cryptogenic #Organizing ... #Pneumonia #ILD
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
- Bilateral peripheral ... typical bilateral peripheral ... organizing pneumonia ... #Cryptogenic #Organizing ... #Pneumonia #ILD
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Lung Diseases (ILD ... pneumonia (NSIP), Cryptogenic ... organizing pneumonia ... (COP), Respiratory ... #diagnosis #differential
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
There is a peripheral ... dealing with the differential ... pneumonia (OP) ... Radiology #CXR #Peripheral ... #Distribution #Organizing
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... adenocarcinoma in situ; COP ... , cryptogenic organising ... , organising pneumonia ... #Algorithm