dictionary help| aortic knuckle | medical dictionary |
The contour of the aortic arch protruding from the mediastinal silhouette in an anteroposterior (AP) radiograph of the chest.
(05 Mar 2000)
aortic incompetence, aortic insufficiency, aortic knob < Prev | Next > aortic laceration, aortic lymphatic plexus
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