11 results
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
pneumonia • formerly BOOP ... , cavities • HRCT ... : patchy consolidation ... Pneumonia #COP #BOOP ... #pulmonary #ILD
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... mainly seen in cryptogenic ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... idiopathic it is called cryptogenic ... BOOP - Bronchiolitis ... #Diagnosis #Radiology ... #Pulmonary #CXR
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
HRCT findings in ... carcinoma, the diagnosis ... of cryptogenic ... #Clinical #Radiology ... Organizing #Pneumonia #ILD
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT ... #Differential #Table
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
dealing with the differential ... diagnosis of chronic ... consolidation. ... also known as BOOP ... #Clinical #Radiology
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
morphologic findings on HRCT ... idiopathic or cryptogenic ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
Reverse Halo Sign
Defined as a central ground class opacity surrounded by a ring of dense consolidation
Differential
ring of dense consolidation ... Differential Diagnosis ... disease • Other: Cryptogenic ... #diagnosis #pulmonary ... #radiology
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... (ground-glass, consolidation ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... Interpretation #Algorithm #ILD
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... in situ; COP, cryptogenic ... lesions, lobular consolidation ... #Diagnosis #Pulmonary ... #Radiology #RHS