31 results
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... : • CXR: Peripheral ... studies legionella/strep ... , Pulmonary lymphoma ... #BOOP #pulmonary
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Organizing pneumonia ... nodular interstitial lung ... Clinical #Diagnosis #Radiology ... #CXR #Lobar #Consolidation
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
caused by streptococcus ... Other examples are organizing ... OP is organizing ... #Diagnosis #Radiology ... #Pulmonary #CXR
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
- Lung neoplasms ... diseases like organizing ... pneumonia (OP) ... #Diagnosis #Radiology ... #Pulmonary #CXR
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... • Idiopathic pulmonary ... ), Cryptogenic organizing ... Churg Strauss syndrome ... #causes
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
anteriorly in the left lung ... This was a consolidation ... caused by Sterptococcus ... #Clinical #Radiology ... #CXR #Pneumonia
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
complete ring of consolidation ... • Infectious Causes ... Dermatomyositis, Lung ... granulomatosis, Cryptogenic organizing ... pneumonia, Pulmonary
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... with multifocal consolidations ... multiple ill-defined masses ... #Clinical #Radiology ... #CXR #Peripheral
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... Consolidation 7. ... Organizing Pneumonia ... #Pulmonary #ChestCT ... #radiology #CTChest
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
weight loss or long ... of chronic consolidation ... caused by Streptcoccus ... #Clinical #Radiology ... #CXR #AirBronchogram