25 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
attenuation or air-filled ... - Emphysema - Lung ... #Diagnosis #Radiology ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... can suggest the diagnosis ... abutting the pleura, air-bronchograms ... #Clinical #Radiology ... SepticEmboli #Cavity #RadiologyAssistant
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
Air Bronchogram ... edema, severe ILD ... .2016.12.033 #Air ... #diagnosis #radiology ... #clinical
Whenever you see an area of increased density within the lung, it must be the result
density within the lung ... or multifocal ill-defined ... the amount of air ... #Diagnosis #Radiology ... Consolidation #Patterns #RadiologyAssistant
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
x-ray there is an ill-defined ... Notice the air-bronchogram ... weight loss or long ... #Clinical #Radiology ... Lobar #Pneumonia #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
Notice the air-fluid ... There is a lung ... is a possible diagnosis ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... .2016.12.033 #Air ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... maybe there is an air-bronchogram ... the differential diagnosis ... #Clinical #Radiology ... OrganizingPneumonia #BOOP #RadiologyAssistant
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
Sign on Chest CT ... • Air surrounding ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Lung Abscess - Clinical ... lat decubitus - air ... seen • Chest CT ... pneumonectomy if fail