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Luftsichel Sign in Left Upper Lobe Collapse - Chest X-Ray

An upper lobe collapse causes the collapse
Luftsichel Sign ... causes the collapse ... lung segments to ... or curtain and causes ... #Chest #XRay #CXR
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
the left heart border ... anteriorly in the left lung ... to a pneumonia caused ... Clinical #Radiology #CXR ... SilhouetteSign #RadiologyAssistant
There is an atelectasis of the left upper lobe.
You would not expect the apical region to
in fact this is caused ... Clinical #Radiology #CXR ... Lateral #LUL #Lobar #Collapse ... #Luftsichel #Sign ... LuftsichelSign #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... low attenuation (table ... is interstitial lung ... seen and in many cases ... #Differential #RadiologyAssistant
The findings are:
 - Large density on the left with loss of cardiac silhouette.
 - High
the right heart border ... Clinical #Radiology #CXR ... Lateral #LUL #Lobar #Collapse ... #Luftsichel #Sign ... LuftsichelSign #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
supplying the upper lung ... supplying the lung ... In these cases comparison ... Clinical #Radiology #CXR ... Redistribution #RadiologyAssistant
Right lower lobe atelectasis
Chest x-rays of a 70-year old male who fell from the stairs and
abnormal right border ... surrounded by aerated lung ... but by the collapsed ... Clinical #Radiology #CXR ... #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... indicates unknown cause ... listed in the table ... on the left in order ... ILD #Findings #RadiologyAssistant
There is a right lower lobe atelectasis.
Notice the abnormal right border of the heart.
The right interlobar
surrounded by aerated lung ... but by the collapsed ... Clinical #Radiology #CXR ... #RLL #Lobar #Collapse ... MucousPlugging #Resolution #RadiologyAssistant
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
atelectasis or lobar collaps ... The most common causes ... Diagnosis #Radiology #CXR ... #Patterns #Comparison ... #RadiologyAssistant