14 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Honeycombing Most diseases ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Diagram #Comparison
COPD assessment and classification as proposed by GOLD 2001, 2006, 2011 and 2017 Reports. For further
Obstructive Lung ... Disease; mMRC: ... modified Medical ... #Diagnosis #Pulmonary ... #Comparison #Staging
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... disease comes from ... , high and low attenuation ... #Diagnosis #Radiology ... #Pulmonary #CXR
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Radiation C - Cystic Fibrosis ... Pulmonary Diseases ... aspergillosis - Chronic ... #diseases #differential ... #STARCHASERS #radiology
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... or interstitial lung ... disease (i.e. fibrosis ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
in the adjacent lung ... hypertension • Mosaic attenuation ... of the affected lung ... Diagnosis: • HRCT ... #differential #
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
HP (right) Differential ... show very similar HRCT ... In chronic HP fibrotic ... Clinical #Diagnosis #Radiology ... #CTChest #UIP #Comparison
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... left multiple diseases ... with ground glass attenuation ... #Clinical #Radiology ... #Comparison #Table
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 ... #Differential #
The distribution of nodules shown on HRCT is the most important factor in making an accurate
distribution In certain diseases ... structures of the lung ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Perilymphatic #Comparison