Left lower lobe posterior segment

Last revised by Yuranga Weerakkody on 22 Nov 2020

The left lower lobe posterior or posterior basal segment is one of the four bronchopulmonary segments of the left lower lobe. It is the most inferoposterior of the segments in the left lower lobe, below the superior segment.

Related pathology

Due to its low and posterior position, pathology in the left lower lobe posterior segment can produce opacification that may only been present on the lateral chest radiograph at the posterior costophrenic angle.

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