11 results
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
non-affected lung areas ... There are patchy areas ... disease #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #RadiologyAssistant
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
glass pattern in a mosaic ... enlargement of pulmonary ... (arrow) in the areas ... #Clinical #Radiology ... Thromboembolism #RadiologyAssistant
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
shows diffuse areas ... lobes and some mosaic ... smoking #Clinical #Radiology ... DesquamativeInterstitialPneumonia #ILD ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
bronchiolitis: ill ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
On the left two different patients with similarl HRCT findings.
The left one is a smoker with
smoker with RB-ILD ... the well defined areas ... #Clinical #Radiology ... CTChest #RBILD #Comparison ... #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
The pulmonary vascular ... In these cases comparison ... with old fims can ... #Clinical #Radiology ... Redistribution #RadiologyAssistant
When a rib fracture heals, the callus formation may create a mass-like appearance (blue arrow).
Sometimes a
formation may create ... and the enlarged pulmonary ... #Clinical #Radiology ... #CXR #Old #RibFracture ... #Pseudotumor #RadiologyAssistant
On the left a patient with CHF. 
There is an increase in heart size compared to
redistribution of pulmonary ... that helpful, but comparison ... #Clinical #Radiology ... #Exacerbation #Comparison ... #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
bronchiectasis) #Diagnosis #Radiology ... #Pulmonary #HRCT ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
It can be difficult to distinguish these three entities.
There are two diagnostic hints for further differentiation:
-
bronchiolitis or chronic pulmonary ... right with the pulmonary ... MosaicAttenuation #Mosaic ... #Attenuation #Comparison ... #RadiologyAssistant