17 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... is interstitial lung ... #Diagnosis #Radiology ... #Pulmonary #CXR
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
#Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Pattern #NodularPattern ... #Differential #Comparison
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular pattern ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #NodularPattern ... #Nodular #Pattern
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
have specific patterns ... morphologic findings on HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
The distribution of nodules shown on HRCT is the most important factor in making an accurate
structures of the lung ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #NodularPattern ... Perilymphatic #Comparison
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 ... in ground glass pattern ... #Radiology #Pulmonary ... #CTChest #GGO #
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
consolidation and GG pattern ... , cavities • HRCT ... Organizing Pneumonia - Diagnosis ... studies legionella/strep ... #ILD #diagnosis
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... On a chest X-ray ... A HRCT is needed ... to confirm the diagnosis ... #Clinical #Radiology
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... #HRCT #CTChest ... Interpretation #Algorithm #ILD