9 results
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Cryptogenic Organizing ... Unknown • 6-7 cases ... opacities, Unilateral consolidation ... • HRCT: patchy consolidation ... #ILD #diagnosis
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
the diagnosis of cryptogenic ... organizing pneumonia ... Radiology #CTChest #COP ... #Cryptogenic #Organizing ... #Pneumonia #ILD
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
lobar pneumonia caused ... OP is organizing ... idiopathic it is called cryptogenic ... (COP). ... The old name is
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
bilateral peripheral consolidations ... as a result of organizing ... Radiology #CTChest #COP ... #Cryptogenic #Organizing ... RheumatoidArthritis #ILD
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
bilateral peripheral consolidations ... in the former case ... Radiology #CTChest #COP ... #Cryptogenic #Organizing ... #Pneumonia #ILD
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 ... (COP), Respiratory ... differential #pulmonary #causes
On the left two cases with chronic consolidation. 
There are patchy non-segmental consolidations in a subpleural
On the left two cases ... with chronic consolidation ... non-segmental consolidations ... organizing pneumonia ... (COP).
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
with multifocal consolidations ... masses. ... the diagnosis of organizing ... pneumonia (OP) ... #Distribution #Organizing
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
adenocarcinoma in situ; COP ... , cryptogenic organising ... , organising pneumonia ... lesions, lobular consolidation ... #Differential #Algorithm