12 results
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Peripheral distribution ... organizing pneumonia (COP ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #RadiologyAssistant
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 ... #Distribution #
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
HRCT findings in ... peripheral consolidations ... carcinoma, the diagnosis ... Organizing #Pneumonia #ILD ... #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... the pattern of distribution ... called cryptogenic (COP ... #Diagnosis #Radiology ... #Pulmonary #CXR
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
of consolidation ... most typical of pulmonary ... #Diagnosis #Radiology ... #CXR #Batwing #Differential ... #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
distribution. ... dealing with the differential ... consolidation. ... #Clinical #Radiology ... OrganizingPneumonia #BOOP #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Imaging: • CXR: Peripheral ... distribution of ... , cavities • HRCT ... #BOOP #pulmonary ... #ILD #diagnosis
On the left two cases with chronic consolidation. 
There are patchy non-segmental consolidations in a subpleural
subpleural and peripheral ... distribution. ... The final diagnosis ... pneumonia the HRCT ... OrganizingPneumonia #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
diagnosis. ... with multiple peripheral ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
(ground-glass, consolidation ... low attenuation (emphysema ... central versus peripheral ... #Radiology #Pulmonary ... #RadiologyAssistant