23 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
#Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison ... #SignetRing #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Centrilobular emphysema ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table ... #RadiologyAssistant
Left upper lobe atelectasis
What are the findings?
 - Minimal volume loss with elevation of the left
left upper lobe #Clinical ... #Radiology #CXR ... #Lateral #LUL # ... Lobar #Collapse ... #APWindow #RadiologyAssistant
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
On the chest x-ray ... In the proper clinical ... #Clinical #Radiology ... AirBronchogram #RUL ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
The CT-images demonstrate the atelectasis of the left upper lobe (blue arrow).
There is a centrally located
#Clinical #Radiology ... #CTChest #LUL # ... Lobar #Collapse ... #Obstructive #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Comparison #RadiologyAssistant
Pulmonary Tuberculosis - Patterns of Involvement
 • Scarring, Nodules and Consolidation
    - Lobar
Consolidation - Lobar ... Loculated effusion or empyema ... #TB #Patterns #chest ... #xray #clinical ... #radiology #CXR
Left lower lobe atelectasis - There is a triangular density seen through the cardiac shadow.
This must
confirmed on the lateral ... the opposite #Clinical ... #Radiology #CXR ... #LLL #Lobar #Collapse ... #RadiologyAssistant