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Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
cardiogenic pulmonary edema ... HRCT #ChestCT #Differential ... Central #Peripheral #RadiologyAssistant
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
called cardiogenic edema ... , to differentiate ... non-cardiogenic edema ... Consolidation #Differential ... #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Aspiration - Pulmonary edema ... HRCT #ChestCT #Differential ... #Upper #Lower #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
Is it pus, edema ... Consolidation #Differential ... #RadiologyAssistant
Pleural effusion is seen in:
1. Pulmonary edema
2. Lymphangitic spread of carcinoma - often unilateral
3. Tuberculosis
4. Lymphangiomyomatosis
Pulmonary edema ... PleuralEffusion #Differential ... #RadiologyAssistant
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
typical of pulmonary edema ... #CXR #Batwing #Differential ... #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... Cardiogenic pulmonary edema ... Cardiogenic pulmonary edema ... Carcinomatosis #Mimic #Differential ... Comparison #Table #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
spaces with pus, edema ... #GroundGlass #Differential ... #RadiologyAssistant
CT will also demonstrate signs of congestive heart failure.
On the image on the left notice the
to interstitial edema ... be high in the differential ... presentation of alveolar edema ... #Intersitial #Edema ... IntersitialEdema #Septal #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
has a limited differential ... interstitial pulmonary edema ... SeptalThickening #Differential ... #RadiologyAssistant