12 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
with areas of ground-glass ... atenuation and areas ... The HRCT shows a ... #Clinical #Radiology ... #CXR #CTChest #
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
named Hamman Rich Pneumonitis ... The histologic pattern ... There are areas ... and extensive areas ... #CTChest #AIP #
On the left two different patients with similarl HRCT findings.
The left one is a smoker with
with similarl HRCT ... hypersensitivity pneumonits ... the well defined areas ... #Clinical #Radiology ... #CTChest #RBILD
Palpable Skin Crepitus on Physical Exam

Notice these air bubbles under the skin. An 86-year-old woman with
An 86-year-old woman ... neck (shown in video ... and spaces can cause ... travels from these areas ... in subcutaneous areas
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Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... the dominant HR-pattern ... low attenuation (emphysema ... #CTChest #Interpretation ... #Algorithm #ILD
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
idiopathic interstitial pneumonias ... indicates unknown cause ... morphologic findings on HRCT ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
The HRCT shows diffuse ... areas of ground-glass ... and some mosaic pattern ... #CTChest #DIP # ... DesquamativeInterstitialPneumonia #ILD
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
left a typical case ... to widespread areas ... the other hand, mild ... difficult to detect on HRCT ... #CTChest #Panlobular