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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
: Lateral, Medial ... Superior, Medial ... , Anterior, Lateral ... CTChest #pulmonary #clinical ... #radiology #Anatomy
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 ... #Clinical #Radiology ... #CXR #Pneumonia ... SilhouetteSign #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 ... #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
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
Left lower lobe atelectasis - There is a triangular density seen through the cardiac shadow.
This must
Left lower lobe ... confirmed on the lateral ... the opposite #Clinical ... #Radiology #CXR ... Lobar #Collapse #RadiologyAssistant
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
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
Batwing A bilateral ... it is seen in pneumonias ... #Diagnosis #Radiology ... #CXR #Batwing # ... Differential #RadiologyAssistant
Nontuberculous mycobacteria
Nontuberculous mycobacteria, also known as atypical mycobacteria, are all the other mycobacteria which can cause
in both upper lobes ... #Clinical #Radiology ... #CXR #Lateral # ... AirFluidLevel #RadiologyAssistant