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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Emphysema - Lung ... diseases with a ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Emphysema #SignetRing #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary ... particularly at the lung ... at the lung bases ... #Clinical #Radiology ... #RadiologyAssistant
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
CXR demonstrates a ... preference at the lung ... bases. ... #Clinical #Radiology ... TractionBronchiectasis #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... histiocytosis or honeycombing ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
lucencies within the lung ... emphysema, bulla, honeycombing ... since in many cases ... #Pulmonary #Diagnosis ... #Radiology
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
and subpleural lung ... regardless of their cause ... usually occur in a ... #Diagnosis #Radiology ... #Pulmonary #Honeycombing
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
supplying the upper lung ... supplying the lung ... non-perfused vessels and causes ... #Clinical #Radiology ... Redistribution #RadiologyAssistant
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
CAN YOU SEE ON CT ... 1) Focal (involving ... a segment or lobe ... involving both lungs ... Bronchiectasis #pulmonary
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
appearance of lung ... bronchial obstruction caused ... CT demonstrated ... #Clinical #Radiology ... Mucus #Plugging #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... and other non-pulmonary ... nodular interstitial lung ... Clinical #Diagnosis #Radiology ... #RadiologyAssistant