10 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... related diseases (centrilobular ... edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT
The distribution of nodules shown on HRCT is the most important factor in making an accurate
nodules shown on HRCT ... Centrilobular distribution ... structures of the lung ... #Diagnosis #Radiology ... #Pulmonary #HRCT
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... perilymphatic, random and centrilobular ... is likely centrilobular ... #Diagnosis #Radiology ... #Pulmonary #HRCT
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 ... , NSIP, DIP. - Centrilobular ... bronchiolitis #Diagnosis ... #Radiology #Pulmonary
Metastases
Metastases are the most common cause of multiple pulmonary masses.
Usually they vary in size and are
cause of multiple pulmonary ... HRCT will demonstrate ... perilymphatic or centrilobular ... distribution. ... #Clinical #Radiology
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
 •
Tree-in-Bud Sign ... CT • Multiple centrilobular ... .2016.12.033 #TreeInBud #Sign ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
reversed halo sign ... consolidation, centrilobular ... perilymphatic distribution ... #Diagnosis #Pulmonary ... #Differential #Algorithm
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Nasal polyps and signs ... air-fluid levels, centrilobular ... in the adjacent lung ... of the affected lung ... : • HRCT (high-resolution
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
associated with centrilobular ... show very similar HRCT ... strong lower zone distribution ... throughout the whole lung ... #Radiology #CTChest
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 ... secondary lobule (centrilobular ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... Interpretation #Algorithm