<pathology> Inflammation of the adventitia of the aorta and of the tissues surrounding it. ... (05 Mar 2000) ... 
(per″e-a″or-ti´tis) inflammation of tissues around the aorta.
Type: Term Pronunciation: per′ē-ā′ōr-tī′tis Definitions: 1. Inflammation of the adventitia of the aorta and of the tissues surrounding it.
periaortitis Inflammation of the outer coat of the aorta and of its surrounding structures.