CTICasesIdiopathic Bronchial Artery Aneurysm
Imaging findings
CT revealed large, dilated bronchial arteries and a large fusiform aneurysm originating directly from the aorta, without an identifiable underlying cause for bronchial artery hypertrophy or aneurysm formation.
Key takeaways
While bronchial artery hypertrophy is common in various lung diseases, bronchial artery aneurysms are rare, especially without a clear etiology. When present, they can be idiopathic and may require follow-up, though intervention (e.g., embolization) may only be necessary if symptomatic (e.g., hemoptysis) or actively enlarging.
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