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Infected Bleb
Cavity with air fluid level
Superior segment of right lower lobe
Radiologic signs:
- Inhomogeneous pulmonary artery density: Note right descending branch
of pulmonary artery is more dense than left , because of the cavity
behind it.
- Pulmonary artery overlay sign: You are able to visualize the
descending branch of the right pulmonary artery, indicating that the density
is either in front or behind it.
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