Bronchial arterial aneurysm

Bronchial arterial aneurysm refers to any form of aneurysmal dilatation involving any segment of the bronchial artery. The term is sometimes used synonymously with a bronchial arterial pseudoaneurysm 2.

They are a rare entity and are reported in <1% of those who undergo selective bronchial arterial angiograms 8.

Most patients are asymptomatic until they rupture. A large mediastinal aneurysm may present as a mediastinal mass, acute superior vena cava obstruction or dysphagia 5.

Their exact pathogenesis is not well known. Most cases have been reported in patients with the following background conditions:

Bronchial artery aneurysms have also been found in individuals with predisposing congenital conditions and systemic vascular diseases such as cystic fibrosis 3 and atherosclerosis. In patients without predisposing pulmonary or systemic disease, bronchial artery aneurysms are extremely rare.

They can be mediastinal (juxta-aortic) or intrapulmonary.

The treatment options for bronchial artery aneurysm include transcatheter embolisation, placement of a covered stent, and surgery.

Catastrophic haemorrhage is is one of the most feared complications.

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Article information

rID: 19915
Systems: Vascular, Chest
Section: Pathology
Synonyms or Alternate Spellings:
  • Bronchial arterial aneurysms
  • Bronchial artery aneurysm
  • Bronchial artery aneurysms
  • Aneurysm of bronchial artery
  • Aneurysm of the bronchial artery
  • Aneurysm inolving the bronchial artery

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Cases and figures

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    Case 1: on angiogram
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    Case 2
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    Case 3
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