A retrospective study of surgical pathology and autopsy material revealed eight examples of
intimomedial tears that had healed with the tear sealed or obliterated by fibromuscular
tissue; four were the result of iatrogenic trauma related to application of aortic cross clamps
during surgery and four developed spontaneously. The former were single lesions, the latter
all associated with other intimomedial tears. Iatrogenic/traumatic tears occurred in
ascending aortas that had histologically normal medias, spontaneous ones were located at …