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The Annals of Thoracic Surgery, Vol 27, 59-62, Copyright © 1979 by The Society of Thoracic Surgeons
W Stanford, DG Knauf, RE Hudson and AR Tucker
The case reports of 5 patients with an aortic arch diverticulum associated
with the proximal left subclavian artery are presented. In 3 patients, the
left subclavian artery arose from a diverticulum off a right aortic arch
and traversed the retroesophageal area to the opposite arm. In 1 patient,
the left subclavian artery arose from a diverticulum off a left aortic
arch; this represents the second instance of this anomaly to be reported in
the literature. In 1 patient, the left subclavian artery was not attached
to the aorta, and a diverticulum was present in the expected area of
attachment. Confusion of these anomalies with solid mediastinal mass
lesions and with aortic aneurysms may occur. Treatment is predicted on
symptomatology, and resection is usually not indicated. It is necessary to
remain cognizant of aortic diverticula and to differentiate them from other
mediastinal mass lesions.
ARTICLES
Diverticula in association with the proximal left subclavian artery: a cause of mediastinal mass lesions
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