18 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... attenuation or air-filled ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
lung diseases ... I-JIP: usual interstitial ... AIP: acute interstitial ... #Differential #Comparison ... #Table #Pulmonary
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
the result of air ... lung disease (i.e ... in ground glass pattern ... #Radiology #Pulmonary ... #CTChest #GGO #
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
Air Bronchogram ... Sign on Chest CT ... .2016.12.033 #Air ... #Lung #Pulmonary ... #diagnosis #radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... lung disease comes ... in many cases UIP ... #Diagnosis #Radiology ... #Pulmonary #CXR
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
have specific patterns ... realise, that these patterns ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
CTAir surrounding ... a preexisting pulmonary ... #Monod #Sign #CT ... #Lung #Pulmonary ... #diagnosis #radiology
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 ... On the CT cavitation ... #Clinical #Radiology
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... on Chest CT • ... .2016.12.033 #Air ... #Lung #Pulmonary ... #diagnosis #radiology
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
 •
CT • Multiple ... arranged in a linear ... branching pattern ... #Lung #Pulmonary ... #diagnosis #radiology