Diminished:

Heard with shallow breathing; normal in obese patients with excessive adipose tissue and during pregnancy. Can also indicate an obstructed airway, partial or total lung collapse, or chronic lung disease.

Abnormal bronchial breath sound (tubular breath sound)

Bronchial breath sound appears in supposed vesicular breath sound area where expiration inspiration are mostly equal

• Consolidation: lobar pneumonia (consolidation stage)
• Large cavity: TB, lung abscess
• Compressed atelectasis: hydrothorax, pneumothorax