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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Emphysema - Lung ... basis of HRCT findings ... #Diagnosis #Radiology ... #Pulmonary #CTChest
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... Findings on Chest ... Reverse Halo Sign ... Pulmonary #ChestCT #radiology ... #CTChest #diagnosis
On the left a chest film of a patient with UIP due to IPF.
The findings on
The findings on ... changes in the basal lung ... appearance of honeycombing ... reticular densities caused ... #Clinical #Radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
about imaging findings ... in interstitial lung ... histiocytosis or honeycombing ... seen and in many cases ... #Diagnosis #Radiology
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
preference at the lung ... bases. ... HRCT demonstrates honeycombing ... #Clinical #Radiology ... #CXR #UIP #CTChest
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... indicates unknown cause ... involvement of the lung ... #Diagnosis #Radiology ... #Pulmonary #CTChest
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 ... we describe a chest ... Pulmonary #Diagnosis #Radiology
Ground-glass opacity is nonspecific, but highly significant finding since 60-80% of patients with ground-glass opacity on
highly significant finding ... the lung disease ... bronchiectasis and honeycombing ... #Clinical #Radiology ... #CTChest #GroundGlass
Cardiac incisura
Click image to enlarge.
On the right side of the chest the lung will lie against
the lung will lie ... inferior part of the lung ... This causes a density ... It is a normal finding ... #Clinical #Radiology
Luftsichel Sign in Left Upper Lobe Collapse - Chest X-Ray

An upper lobe collapse causes the collapse
Luftsichel Sign ... lobe collapse causes ... the collapse lung ... or curtain and causes ... Collapse #clinical #radiology