23 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
decreased lung attenuation ... diseases with a low attenuation ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... patterns: reticular, nodular ... , high and low attenuation ... #Diagnosis #Radiology ... #Pulmonary #CXR
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
in differential diagnosis ... nodules and the nodular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Perilymphatic #Nodular
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
- Differential Diagnosis ... Nodular: • Random ... Honeycombing: Idiopathic Pulmonary ... #Differential #Diagnosis ... #pulmonary #radiology
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 ... HR-pattern: reticular nodular ... high attenuation ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Mosaic Attenuation ... chest CT in a lobular ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... NodularPattern #Nodular
This patient presented with acute dyspnoe and a normal chest film (not shown).
The HRCT at presentation
The HRCT at presentation ... (left) shows lobular ... of ground glass attenuation ... A control HRCT ten ... #Clinical #Radiology
The distribution of nodules shown on HRCT is the most important factor in making an accurate
nodules shown on HRCT ... making an accurate diagnosis ... in the nodular ... #Diagnosis #Radiology ... #Pulmonary #HRCT
Here are the most common examples of these four patterns on a chest x-ray (click image
opacities - Fine Nodular ... mass - Solitary Pulmonary ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology