6 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... on the basis of HRCT ... #Pulmonary #CTChest ... #Cysts #Emphysema ... #SignetRing #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
): uniform cysts ... bizarre shaped cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... multiple thick walled cysts ... ): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
There is a lung cyst ... cyst formation ... #Clinical #Radiology ... #CXR #Pneumothorax ... #LAM #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
associated pulmonary ... #Clinical #Diagnosis ... #Cavity #Cyst # ... Emphysema #Comparison ... #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
There is a lung cyst ... cyst formation ... #Clinical #Radiology ... #CXR #Pneumothorax ... #LAM #RadiologyAssistant