12 results
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Central distribution ... pneumonia (COP), chronic ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Central #Peripheral #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... Pulmonary edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT ... Differential #Table #Distribution
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
in a mid zone distribution ... The HRCT shows a ... #Clinical #Radiology ... #CXR #CTChest # ... #Fibrosis #RadiologyAssistant
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
bilateral perihilar distribution ... frequently seen in chronic ... #Diagnosis #Radiology ... #CXR #Batwing # ... Differential #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
month history of chronic ... #Clinical #Radiology ... #CXR #Peripheral ... #Distribution # ... OrganizingPneumonia #BOOP #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... show very similar HRCT ... strong lower zone distribution ... #Radiology #CTChest ... #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 ... #Diagnosis #Radiology ... #Pulmonary #CXR ... Differential #Table #RadiologyAssistant
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
heart failure like redistribution ... heart due to a chronic ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
A HRCT is needed ... to confirm the diagnosis ... attributed to chronic ... #Clinical #Radiology ... #Honeycombing #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Imaging: • CXR ... : Peripheral distribution ... , cavities • HRCT ... organizing pneumonia, Chronic ... BOOP #pulmonary #ILD