Bronchial arterial enlargement

Bronchial arterial enlargement usually occurs as a result of bronchial pulmonary shunting. This can result from a number of situations:

Radiographic features

Assessment of the presence and extent of bronchial arterial enlargement is particularly important in those presenting with haemoptysis.


The bronchial arteries typically arise from the thoracic aorta at the T3-T8 levels. 80% percent of arteries arise from the T5 to T6 level. Enlarged arteries are often seen and dilated tortuous vessels at this level in the mediastinum. In this situation, the proximal bronchial arteries are usually >2 mm 2,7.

See also

Share article

Article information

rID: 29751
System: Chest
Synonyms or Alternate Spellings:
  • Enlarged bronchial artery
  • Enlarged bronchial arteries
  • Bronchial artery hypertrophy
  • Bronchial arterial hypertrophy
  • Bronchial artery dilatation
  • Bronchial arterial dilatation
  • Enlargement of bronchial arteries

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1: with concurrent bronchiectasis
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.