9 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
(centrilobular emphysema ... bronchiolitis (RB-ILD ... edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
(ground-glass, consolidation ... low attenuation (emphysema ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... Interpretation #Algorithm #ILD
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... the differential diagnosis ... respond to the treatment ... #Diagnosis #Radiology ... #Pulmonary #CXR
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
or an area of consolidation ... without associated pulmonary ... emphysema. ... #Radiology #CTChest ... #Comparison #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
, cavities • HRCT ... : patchy consolidation ... Organizing Pneumonia - Diagnosis ... Organizing Pneumonia Treatment ... #ILD #diagnosis
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
with subtle HRCT-findings ... are paraseptal emphysema ... broad differential diagnosis ... interpretion of the HRCT ... #Clinical #Radiology
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... centrilobular emphysema ... show very similar HRCT ... #Radiology #CTChest ... #UIP #Comparison
Incidental Finding of Oleothorax - A chest radiograph showed a dense opacity in the upper area
abnormality includes an old ... calcified empyema ... for pulmonary tuberculosis ... #Clinical #PCC # ... Radiology #CXR #