true aneurysm

true an·eu·rysm

localized dilation of an artery with an expanded lumen lined by stretched remnants of the arterial wall.
References in periodicals archive ?
It can lead to the same complications as the true aneurysm.
The boundaries of a false aneurysm are constituted by thrombus, as opposed to the three arterial layers as in a true aneurysm.
sup][1] The diagnostic criteria for true aneurysm were limited expansion of splenic artery with intact wall and clear boundaries from the normal splenic artery, with the maximum width of the neck more than 1.
A true aneurysm is an outpouching of the vessel wall, usually due to weakening of the wall.
Depending on the type: true aneurysm, pseudoaneurysm, dissecting aneurysm;
A true aneurysm is a segmental dilatation of blood vessels including all wall layers whereas a pseudoaneurysm represents a collection of blood outside the vessel wall contained by the surrounding tissues.
True aneurysm rupture of omental artery leading to hemoperitoneum and shock in a CAPD patient.
Bleeding in a pseudoaneurysm is contained by the adventitia and/or surrounding fascia generating a very fine wall, and the hematoma thus formed is gradually surrounded by a layer of fibrous tissue, analogous to the normal adventitia artery; while the three layers of the vessel wall are preserved in the true aneurysm (tunica intima, media and adventitia), the diameter of these pseudoaneurysms increases with the passage of time due to blood pressure.
A A false brain aneurysm (pseudoaneurysm) is a widening of the wall of a blood vessel that usually involves the outermost layers only, rather than all the layers of the vessel wall, as in a true aneurysm.
A pseudoaneurysm differs from a true aneurysm in that it occurs as a "pouch" attached to an artery, while a true aneurysm is a circumferential thinning or weakness of an arterial wall.