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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Lung Segment Anatomy ... : Lateral, Medial ... Superior, Medial ... CTChest #pulmonary #clinical ... #radiology #Anatomy
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
anteriorly in the left lung ... #Clinical #Radiology ... #CXR #Pneumonia ... #Lingula #SilhouetteSign ... #RadiologyAssistant
First study the CXRs.
There is a subtle consolidation in the left lower lobe in the hidden
First study the CXRs ... the left lower lobe ... #Clinical #Radiology ... Retrocardiac #SpineSign #SilhouetteSign ... #RadiologyAssistant
First study the CXR.
Notice the subtle increased density in the area behind the heart that needs
First study the CXR ... This was a lower lobe ... #Clinical #Radiology ... #Subtle #SilhouetteSign ... #RadiologyAssistant
A 50 yo F with a history of poor dentition presents to the ED with fever
lesion in R middle lobe ... consistent w/ lung ... abscess #Clinical ... #Radiology #CXR ... #ChestXRay #Cavitary
ARDS/VALI progression over the course of 1 week 
 (a) Day 1 - No pathological findings.
consolidations in lower lobes ... involvement, with “white lung ... #Clinical #Radiology ... #CXR #ChestXRay
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
The upper lobe is ... cyst in the upper lobe ... #Clinical #Radiology ... #CXR #Pneumothorax ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Cardiac incisura
Click image to enlarge.
On the right side of the chest the lung will lie against
the chest the lung ... lingula or middle lobe ... #Clinical #Radiology ... #CXR #Lateral # ... Cardiac #Incisura #RadiologyAssistant
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
the right upper lobe ... weight loss or long ... #Clinical #Radiology ... #CXR #AirBronchogram ... Lobar #Pneumonia #RadiologyAssistant
Vena azygos lobe
A common normal variant is the azygos lobe.
The azygos lobe is created when a
upper part of the lung ... apex of the right lung ... #Clinical #Radiology ... #CXR #Azygous # ... Lobe #RadiologyAssistant