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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
, Medial • Lower ... Lobe: Superior, Medial ... , Anterior, Lateral ... #CT #CTChest #pulmonary ... #clinical #radiology
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
arthritis and bilateral ... #Clinical #Radiology ... #CTChest #COP # ... RheumatoidArthritis #ILD ... #RadiologyAssistant
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... Reverse Halo Sign ... Bilateral Peripheral ... Halo Sign 6. ... Organizing Pneumonia
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
multiple small bilateral ... #Clinical #Radiology ... #CTChest #COP # ... #Pneumonia #ILD ... #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
feeding vessel sign ... feeding vessel sign ... #Clinical #Radiology ... #CXR #CTChest # ... SepticEmboli #Cavity #RadiologyAssistant
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
#Clinical #Radiology ... #CTChest #COP # ... Cryptogenic #Organizing ... #Pneumonia #ILD ... #RadiologyAssistant
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
shows a silhouette sign ... looking at the lateral ... anteriorly in the left lung ... #Clinical #Radiology ... SilhouetteSign #RadiologyAssistant
Cardiac incisura
Click image to enlarge.
On the right side of the chest the lung will lie against
the lung will lie ... inferior part of the lung ... #Clinical #Radiology ... #CXR #Lateral # ... Cardiac #Incisura #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... the diagnosis of organizing ... #Clinical #Radiology ... #Distribution #Organizing ... OrganizingPneumonia #BOOP #RadiologyAssistant
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
subpleural and basal lung ... #Clinical #Radiology ... #CTChest #UIP # ... #Pneumonitis #ILD ... #RadiologyAssistant