28 results
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Acute Eos PNA • Chronic ... Pneumonia, COP, Chronic ... #Diagnosis #pulmonary ... #radiology
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
attenuation or ... - Emphysema - Lung ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation ... end-stage with massive fibrosis ... consolidation #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Mosaic Attenuation ... Variable attenuation ... DDx: BO, CTEPH, PJP ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
or tumor cells (Table ... Even fibrosis as ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Consolidation #Differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
or interstitial lung ... bronchiolitis, PCP ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest ... #GroundGlass #Differential
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
Mosaic attenuation ... due to chronic ... disease #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Causes: • Cystic fibrosis ... in the adjacent lung ... hypertension • Mosaic attenuation ... of the affected lung ... #differential #
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... , high and low attenuation ... (table). ... #Diagnosis #Radiology ... #Pulmonary #CXR
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Radiation C - Cystic Fibrosis ... caused by a rigid chest ... aspergillosis - Chronic ... #diseases #differential ... #STARCHASERS #radiology