11 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On HRCT there are ... The cystic pattern ... When the cysts have ... seen and in many cases ... #Diagnosis #Radiology
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
The CXR demonstrates ... preference at the lung bases ... The HRCT demonstrates ... #Clinical #Radiology ... #CXR #UIP #CTChest
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... histiocytosis) - Bronchiectasis ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
or a cystic pattern ... In many of such cases ... a HRCT will give ... #Clinical #Radiology ... #CXR #CTChest #
Sarcoidosis
In this case the chest x-ray shows subtle findings that could be described as fine reticulation.
In
the chest x-ray ... HRCT is needed to ... #Clinical #Radiology ... #CXR #Sarcoidosis ... #Interstitial #Pattern
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 ... attenuation (emphysema, cystic ... lymphadenopathy, traction bronchiectasis ... #CTChest #Interpretation ... #Algorithm #ILD
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
patients with bronchiectasis ... , as in cystic fibrosis ... bronchial obstruction caused ... #Clinical #Radiology ... #CXR #CTChest #
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
On a chest X-ray ... A HRCT is needed ... Here a CXR with ... HRCT demonstrated ... #Clinical #Radiology
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... : • Cystic fibrosis ... no evidence of cystic ... Diagnosis: • HRCT
Ground-glass opacity is nonspecific, but highly significant finding since 60-80% of patients with ground-glass opacity on
ground-glass opacity on HRCT ... the ground-glass pattern ... usually associated HRCT ... #Clinical #Radiology ... #CTChest #GroundGlass