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Subapical bronchopulmonary segment (left inferior lobe)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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In roughly half of the population, directly inferior to the apical segment of the inferior lobe of the lung is a subapical bronchopulmonary segment. It is supplied by a separate subapical segmental bronchus derived from the inferior lobe bronchus.

On the left side, this segment sits:

  • inferior to the apical segment
  • posterior to the mid-portion of the oblique fissure
  • superior to the anterior, lateral and medial basal segments
  • superoanterior to the posterior basal bronchopulmonary segment

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