CHICAGO LARYNGOLOGICAL AND OTOLOGICAL SOCIETY: Regular Meeting, Jan. 4, 1933

RIGHT-SIDEDRETRO-ESOPHAGEALAORTA(PERSISTENCE OF THERIGHTAORTICARCH):ANEWCLINICAL ANDROENTGENPICTURE.DR.AARONARKIN(by invitation). A new form of aortic anomaly was presented. It consists of a total persistence of the right aortic arch, together with a persistence of the left aortic arch in the form of the left subclavian artery, a short obliterated vessel and a diverticulum of the aorta; in other words, a persistence of both aortic arches. The right arch forms the aorta. The left arch forms the beginning portion of the left subclavian artery, the obliterated vessel (isthmus stenosis) and the aortic diverticulum (left descending dorsal aortic root). The patient, a man, aged 50, was examined by Dr. Arkin at the Wenckebach Clinic, Vienna. He presented the following roentgen appearance: 1. There was a shadow to the right of the sternum, running upward to the region of the head of the