Saccular aneurysms of the thoracic aorta. From: American Family Physician | Date: May 1, 1990| Author: Scialabba, Fred A.; Deluca, Salvatore A. | COPYRIGHT 1990 American Academy of Family Physicians. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

Aortic aneurysms are classified as true aneurysms when three layers of the aortic wall are intact; false aneurysms if none of the walls are intact; and pseudoaneurysms where one or two layers remain intact. Fusiform aneurysms involve the entire vessel wall, while saccular aneurysms affect only a portion of the vessel wall. Thoracic aneurysms occur in the chest portion of the aorta, and are less common than those occurring in the abdominal aorta. They are frequently caused by atherosclerosis, ...

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