PMC7191203_01
(A) Chest X-ray showing a nodular lesion overlapping the pulmonary artery at the right hilar region. (B) Chest contrast-enhanced computed tomography (CT) showing convolution and dilatation of the bronchial artery (arrow). (C) Chest CT showing a nodular lesion in the right lower lobe of the lung (arrow). (D) Coronal image of enhanced lung CT showing hyperplasia, dilatation and tortuosity of the right bronchial artery, which has originated from the aortic arch. (E) Four-dimensional reconstruction of the CT revealing that the primary racemose hemangioma of the bronchial artery was not shown during the early arterial phase, but enhanced during the pulmonary arterial phase.
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Her chest X-ray revealed a nodular lesion overlapping the pulmonary artery at the right hilar region (Fig. 1A). Contrast-enhanced computed tomography (CT) of the chest revealed hyperplasia, dilatation, and tortuosity of the right bronchial artery which branched from the aortic arch No other abnormalities, such as lung field or heart abnormalities, were observed (Fig. 1B, C, D). Four-dimensional reconstruction of the CT image revealed that aneurysmal dilatation of the long segment of the right bronchial artery, which was suspected of RHBA, was contrasted during the early arterial phase, but enhanced during the pulmonary arterial phase (Fig. 1E).
A bronchial arteriography revealing (A) an aneurysmal dilatation in the long segment of the right bronchial artery (arrows). (B) A shunt from the primary racemose hemangioma of the bronchial artery (RHBA) to the right lower pulmonary artery (arrow). (C) An enhanced lung due to the pulmonary artery via a bronchial artery. (D) RHBA before bronchial arterial embolization (BAE) in the right anterior oblique at a 45-degree-angle. (E) Absent opacification of RHBA after BAE, and the right bronchial artery (arrow).
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Bronchial arteriography revealed an aneurysmal dilatation in the long segment of the right bronchial artery (Fig. 2A) and a shunt from the right bronchial artery to the right lower pulmonary artery (Fig. 2B and C). B. Braun, Melsungen, Germany) and iodized oil (lipiodol; Guerbet, Tokyo, Japan; NBCA:lipiodol 1:3) under balloon occlusion (Fig. 2D and E).