23 results
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
Sign on Chest CT ... • Patent airways ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
attenuation or air-filled ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
CTAir surrounding ... #Monod #Sign #CT ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
thickening, presence of air-fluid ... in the adjacent lung ... CT) • Broncho-arterial ... #differential # ... diagnosis
Bronchus Sign on Chest CT
 • Airway leading directly to a peripheral lung nodule or mass
CTAirway leading ... to a peripheral lung ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Signet Ring Sign on Chest CT
 • Prominently dilated airway compared to its accompanying pulm vessel.
CT • Prominently ... dilated airway ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... on Chest CT • ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Tram Track Sign on Chest CT
 • Parallel, non-tapering airways, extending to the lung periphery.
 •
CT • Parallel, ... non-tapering airways ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
It can be difficult to distinguish these three entities.
There are two diagnostic hints for further differentiation:
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There are two diagnostic ... bronchiolitis or chronic ... penicillamine) #Clinical ... #Radiology #CTChest ... #Attenuation #Comparison
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
Notice the air-fluid ... is a possible diagnosis ... obstruction of small airways ... leading to pulmonary ... #Clinical #Radiology