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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Lung Segment Anatomy ... • Middle Lobe: Lateral ... radiopaedia.org/cases ... pulmonary #clinical #radiology ... #Anatomy
The azygoesophageal recess is the region inferior to the level of the azygos vein arch in
which the right lung ... line is caused ... cyst #Clinical #Anatomy ... #Radiology #CTChest ... #Recess #RadiologyAssistant
PA view
On the PA chest-film it is important to examine all the areas where the lung
we will discuss later ... look for is the azygoesophageal ... #Clinical #Anatomy ... #Radiology #CXR ... Normal #Labeled #Azygoesophageal
A hiatal hernia is the most common cause of displacement of the azygoesophageal line.
Notice the air
the most common cause ... displacement of the azygoesophageal ... #Clinical #Radiology ... #CXR #Lateral # ... Hiatal #Hernia #RadiologyAssistant
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
looking at the lateral ... anteriorly in the left lung ... to a pneumonia caused ... #Clinical #Radiology ... SilhouetteSign #RadiologyAssistant
Cardiac incisura
Click image to enlarge.
On the right side of the chest the lung will lie against
the chest the lung ... This causes a density ... #Clinical #Radiology ... #CXR #Lateral # ... Cardiac #Incisura #RadiologyAssistant
Another common cause of displacement of the azygoesophageal line is subcarinal lymphadenopathy.
Notice the displacement of the
Another common cause ... displacement of the azygoesophageal ... #Clinical #Radiology ... #CXR #Lateral # ... #Displacement #RadiologyAssistant
Mediastinal lines
Mediastinal lines or stripes are interfaces between the soft tissue of mediastinal structures and the
structures and the lung ... #Clinical #Anatomy ... #Radiology #CXR ... Paraaortic #Paraspinal #Azygoesophageal ... #Paratracheal #RadiologyAssistant
The contours of the left and right diaphragm should be visible.
The right diaphragm should be visible
the air in the lungs ... #Clinical #Anatomy ... #Radiology #CXR ... #Lateral #Hemidiaphragm ... #RadiologyAssistant
Lateral view
On a normal lateral view the contours of the heart are visible and the IVC
upper lobes of the lung ... this is not the case ... #Clinical #Anatomy ... #Radiology #CXR ... #Labeled #RadiologyAssistant