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Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Imaging: • CXR ... consolidation and GG pattern ... irregular lines, nodular ... Pulmonary lymphoma, Diffuse ... #ILD #diagnosis
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
consolidation, is to look ... lobar pneumonia caused ... OP is organizing ... called cryptogenic (COP ... Radiology #Pulmonary #CXR
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... consolidation - Diffuse ... - Multiple Masses ... Clinical #Radiology #CXR ... #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... the following: - Look ... are diffuse and ... #Algorithm #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
masses. ... pneumonia (OP) ... Clinical #Radiology #CXR ... #Distribution #Organizing ... #RadiologyAssistant
Whenever you see an area of increased density within the lung, it must be the result
of these four patterns ... resulting in lobar, diffuse ... or multifocal ill-defined ... Diagnosis #Radiology #CXR ... #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
diseases like organizing ... granulomatous noduli ... are so small and diffuse ... Radiology #Pulmonary #CXR ... #Differential #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
Organizing pneumonia ... (OP) - multiple ... in fact this is nodular ... Diagnosis #Radiology #CXR ... #RadiologyAssistant
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
multiple pulmonary nodules ... • Patchy or diffuse ... • Reticular + Nodular ... Exclusion of other ILDs ... LDH • ↑ ESR, CRP