32 results
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Mosaic Attenuation ... on Chest CT • ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
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 ... #Clinical #Radiology ... #CXR #CTChest # ... SepticEmboli #Cavity #RadiologyAssistant
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
glass pattern in a mosaic ... caliber due to chronic ... #Clinical #Radiology ... #CTChest #GGO # ... #RadiologyAssistant
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
due to chronic ... thromboembolic disease #Diagnosis ... #Radiology #Pulmonary ... #CTChest #MosaicAttenuation ... #Differential #RadiologyAssistant
On the left another patient with ground glass pattern in a mosaic distribution.
Again the ground glass
glass pattern in a mosaic ... hyperperfused lung ... #Clinical #Radiology ... #CTChest #GGO # ... #RadiologyAssistant
Tram Track Sign on Chest CT
 • Parallel, non-tapering airways, extending to the lung periphery.
 •
CT • Parallel, ... extending to the lung ... bronchiectasis, CF, ILD ... #diagnosis #radiology ... #clinical
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
CT • Patent airways ... edema, severe ILD ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
expiratory scan: the mosaic ... mid and lower lung ... #Clinical #Radiology ... #CTChest #Chronic ... HypersensitivityPneumonitis #Fibrosis #RadiologyAssistant
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
in the adjacent lung ... hypertension • Mosaic ... of the affected lung ... parenchyma Diagnosis ... CT) • Broncho-arterial
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... throughout the whole lung ... #Clinical #Diagnosis ... #Radiology #CTChest ... #RadiologyAssistant