14 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
adenopathy and pleural ... #Clinical #Radiology ... #HRCT #CTChest ... #LowAttenuation ... Pattern #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation ... #Clinical #Radiology ... #HRCT #CTChest ... #LowAttenuation ... Pattern #Comparison #Table
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
diseases with a low ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #LowAttenuation
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... nodular, high and low ... attenuation (table ... #Diagnosis #Radiology ... #Pulmonary #CXR
Sand Storm Sign on Chest CT
 • Diffusely dense pulmonary micronodular calcifications. Note the black pleural
CT • Diffusely ... dense pulmonary ... Note the black pleural ... #diagnosis #radiology ... #clinical
Comet Tail Sign on Chest CT
 • Curvilinear pleural based opacity directed towards the ipsilateral hilum
CT • Curvilinear ... pleural based opacity ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Split Pleura Sign on Chest CT
 • Contrast enhancement of the parietal and visceral pleura, separated
Split Pleura Sign ... on Chest CT • ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
consolidation) low ... additional findings (pleural ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... #HRCT #CTChest
Head Cheese Sign on Chest CT
 • Juxtaposition of distinct radiographic areas of low, normal and
CT • Juxtaposition ... radiographic areas of low ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Fleischner Society recommendations for follow-up of nodules
Previous chest radiographs should be reviewed to determine if the
mm depends on clinical ... malignancy, as follows: Low ... definitive tissue diagnosis ... #Management #Radiology ... Society #Followup #Pulmonary