17 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
pneumonitis are: Mosaic pattern ... and areas of low attenuation ... The HRCT shows a ... mosaic pattern ... Radiology #CXR #CTChest
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... decreased lung attenuation ... pattern can be ... on the basis of HRCT ... Radiology #Pulmonary #CTChest
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation ... pattern 1. ... Clinical #Radiology #HRCT ... #CTChest #LowAttenuation ... #Cystic #Pattern
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation ... pattern (2) 1. ... Clinical #Radiology #HRCT ... #CTChest #LowAttenuation ... #Cystic #Pattern
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis on HRCT ... disease comes from HRCT ... On HRCT there are ... , high and low attenuation ... On a Chest X-Ray
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation ... pattern (2) 1. ... Clinical #Radiology #HRCT ... #CTChest #HighAttenuation ... #Pattern #Comparison
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation ... pattern 1. ... Clinical #Radiology #HRCT ... #CTChest #HighAttenuation ... #Pattern #Comparison
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... the nodules are diffuse ... Radiology #Pulmonary #HRCT ... #CTChest #NodularPattern
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... the dominant HR-pattern ... consolidation) low attenuation ... #CTChest #Interpretation ... #Algorithm #ILD
Chronic Thromboembolic Pulmonary Hypertension (CTEPH) and Pulmonary Thromboendarterectomy
Chronic Thromboembolic Pulmonary Hypertension
Definition: mean pulmonary-artery pressure > 25mmHg
Hypertension (CTEPH ... not specific • Chest ... mosaic parenchymal pattern ... patients with CTEPH ... recurrent VTE • RCT