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

An upper lobe collapse causes the collapse
Sometimes the LLL ... LUL and the aorta ... the air in the LLL ... #LUL #Collapse ... #clinical #radiology
Left upper lobe atelectasis
What are the findings?
 - Minimal volume loss with elevation of the left
, which is the collapsed ... #Clinical #Radiology ... #CXR #Lateral #LUL ... #Lobar #Collapse ... #APWindow #RadiologyAssistant
The CT-images demonstrate the atelectasis of the left upper lobe (blue arrow).
There is a centrally located
the left upper lobe ... #Clinical #Radiology ... #CTChest #LUL # ... Lobar #Collapse ... #Obstructive #RadiologyAssistant
First study the CXR.
Notice the subtle increased density in the area behind the heart that needs
This was a lower lobe ... #Clinical #Radiology ... #CXR #LLL #Pneumonia ... #Subtle #SilhouetteSign ... #RadiologyAssistant
There is an atelectasis of the left upper lobe.
You would not expect the apical region to
the left upper lobe ... #Clinical #Radiology ... #CXR #Lateral #LUL ... #Lobar #Collapse ... LuftsichelSign #RadiologyAssistant
Left lower lobe atelectasis - There is a triangular density seen through the cardiac shadow.
This must
Left lower lobe ... this is lower lobe ... opposite #Clinical #Radiology ... #CXR #LLL #Lobar ... #Collapse #RadiologyAssistant
The findings are:
 - Large density on the left with loss of cardiac silhouette.
 - High
#Clinical #Radiology ... #CXR #Lateral #LUL ... #Lobar #Collapse ... #Luftsichel #Sign ... LuftsichelSign #RadiologyAssistant
Right middle lobe atelectasis
First study the x-rays and then continue reading.
What are the findings?
Blurring of the
border (silhouette sign ... as a result of collapse ... #Clinical #Radiology ... #SilhouetteSign ... #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
the central dot sign ... The upper lobe predominance ... #Clinical #Radiology ... #CXR #CTChest #LCH ... #RadiologyAssistant