16 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Interstitial - Nodular ... Pulmonary #Diseases #Radiology ... #Patterns #Lung ... #CXR #XRay #ChestCT ... #Differential #Diagnosis
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
pneumatocele, emphysema ... we describe a chest ... X-ray, we are trying ... with a thin wall Emphysema ... #Diagnosis #Radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... patterns: reticular, nodular ... On a Chest X-Ray ... #Diagnosis #Radiology
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... Centrilobular emphysema ... #Radiology #CTChest ... #Differential #Comparison
The distribution of nodules shown on HRCT is the most important factor in making an accurate
shown on HRCT is ... making an accurate diagnosis ... structures of the lung ... #Diagnosis #Radiology ... Perilymphatic #Comparison
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... the surrounding lung ... #Radiology #CTChest ... #Cavity #Cyst # ... Emphysema #Comparison
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
multiple ill-defined nodules ... can suggest the diagnosis ... the ill-defined nodules ... #Clinical #Radiology ... #SepticEmboli #Cavity
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
centrilobular emphysema ... show very similar HRCT ... throughout the whole lung ... #Radiology #CTChest ... #UIP #Comparison
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
HR-pattern: reticular nodular ... low attenuation (emphysema ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... #HRCT #CTChest