Canadian Medical Guide > Diseases > Cardiovascular Diseases > Vascular Diseases > Aneurysm Terms and Definitions

Aneurysm

Medical Definition:	A sac formed by the dilatation of the wall of an artery, a vein, or the heart.
Guide Notes:	IM; coord with specific vessel (IM) or precoord vasc dis if available (IM); also available are AORTIC ANEURYSM; INTRACRANIAL ANEURYSM; CORONARY ANEURYSM; HEART ANEURYSM; ILIAC ANEURYSM; rupture = ANEURYSM, RUPTURED (see note there)

Aneurysm Categories.

	Aneurysm, Dissecting - Splitting or dissection of an arterial wall by blood entering through an intimal tear or by interstitial hemorrhage. It is most common in the aorta.
	Aneurysm, False - An aneurysm in which the entire wall is injured and the blood is contained by the surrounding tissues, with eventual formation of a sac communicating with the artery or heart. (Dorland, 28th ed)
	Aneurysm, Ruptured - The tearing or herniation of the weakened wall of the aneurysmal sac.
	Aortic Aneurysm - Aneurysm of the aorta.
	Iliac Aneurysm - An aneurysm of the common, internal, or external iliac arteries.

Aneurysm Medical Definitions and Terms

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