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In human anatomy, the abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta, ... The Infrarenal segment, ...
The lateral aortic lymph nodes, typically 15 to 20 on each side, are the ones usually chosen for dissection or biopsy in the treatment or diagnosis of cancer.. A dissection usually includes the region from the bifurcation of the aorta to the superior mesenteric artery or the renal veins.
The inferior vena cava is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart.It is formed by the joining of the right and the left common iliac veins, usually at the level of the fifth lumbar vertebra.
A plate from Gray's Anatomy with yellow lines depicting the most common infrarenal location of the AAA 3D file showing an aortic aneurysm. The most striking histopathological changes of the aneurysmatic aorta are seen in the tunica media and intima layers.
The retroperitoneal space (retroperitoneum) is the anatomical space (sometimes a potential space) behind (retro) the peritoneum.It has no specific delineating anatomical structures.
Depending on the extent of the aorta repaired, an open aortic operation may be called an Infrarenal aortic repair, a Thoracic aortic repair, or a Thoracoabdominal aortic repair. A thoracoabdominal aortic repair is a more extensive operation than either an isolated infrarenal or thoracic aortic repair.
The internal iliac artery arises at the bifurcation of the common iliac artery, opposite the lumbosacral articulation, and, passing downward to the upper margin of the greater sciatic foramen, divides into two large trunks, an anterior and a posterior.
The aortic bifurcation is the point at which the abdominal aorta bifurcates (forks) into the left and right common iliac arteries.The aortic bifurcation is usually seen at the level of L4, [1] just above the junction of the left and right common iliac veins.