Small airways

Small airways traditionally refer to distal airways that are 2-3 mm or less in calibre 3 with a wall thickness of less than 0.5 mm 5. These therefore include terminal bronchi (have cartilage) as well as bronchioles (no cartilage). They may or may not be directly visible on CT.

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Article information

rID: 54198
System: Chest
Section: Anatomy
Synonyms or Alternate Spellings:

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