A 46-year-old woman was found to have an aneurysm of the superior segmental pulmonary artery in the right lower lung lobe on computed tomography images. Moreover, angiography revealed dilated bronchial arteries flowing into the aneurysm with neovascularization, and the contrast medium was partially pooled in the basal segment of the same lobe. The patient's hemoptysis could not be controlled by an interventional radiology procedure. Therefore, lobectomy was carried out instead of aneurysmectomy. There has been no recurrence for 4 years after surgery. We considered that that angiographic information allowed for the most appropriate operation in this case.
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