Cava inferior

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Cava inferior

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. The inferior vena cava is the lower " inferior " of the two venae cavae , the two large veins that carry deoxygenated blood from the body to the right atrium of the heart: the inferior vena cava carries blood from the lower half of the body whilst the superior vena cava carries blood from the upper half of the body. Together, the venae cavae in addition to the coronary sinus , which carries blood from the muscle of the heart itself form the venous counterparts of the aorta. It is a large retroperitoneal vein that lies posterior to the abdominal cavity and runs along the right side of the vertebral column. The name derives from Latin : vena, "vein", cavus, "hollow". The IVC is formed by the joining of the left and right common iliac veins and brings collected blood into the right atrium of the heart. The inferior vena cava begins as the left and right common iliac veins behind the abdomen unite, at about the level of L5. Because the inferior vena cava is located to the right of the midline, drainage of the tributaries is not always symmetrical. On the right, the gonadal veins and suprarenal veins drain into the inferior vena cava directly. In the embryo , the inferior vena cava and right auricle are separated by the valve of the inferior vena cava , also known as the Eustachian valve. In the adult, this valve typically has totally regressed or remains as a small fold of endocardium. Rarely, the inferior vena cava may vary in its size and position. In transposition of the great arteries the inferior vena cava may lie on the left.

Delayed post-contrast imaging 70—90 s after contrast material injection allows for more uniform opacification of blood, and therefore resolution cava inferior the mixing artefact [ 17 ].

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Cava inferior

At the time the article was last revised Yoshi Yu had no financial relationships to ineligible companies to disclose. The inferior vena cava IVC plural: inferior venae cavae is one of the great vessels that drains venous blood from the lower limbs , pelvis and abdomen into the right atrium of the heart. The inferior vena cava is formed by the confluence of the two common iliac veins at the L5 vertebral level. The IVC has a retroperitoneal course within the abdominal cavity.

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Anatomical terminology [ edit on Wikidata ]. Epidural venous enlargements presenting with intractable lower back pain and sciatica in a patient with absence of the infrarenal inferior vena cava and bilateral deep venous thrombosis. Clin Imaging. Extrahepatic collateral artery supply to the tumor thrombi of hepatocellular carcinoma invading inferior vena cava: the prevalence and determinant factors. Anatomical variants IVC anatomical variants primarily result from abnormal regression or persistence of embryological veins [ 7 ]. J Am Med Assoc. Kouroukis C, Leclerc JR. Articles from Insights into Imaging are provided here courtesy of Springer. Preview improvements coming to the PMC website in October Interruption or congenital stenosis of the inferior vena cava: prevalence, imaging, and clinical findings. Anat Sci Int.

The inferior vena cava is also referred to as the posterior vena cava. Deoxygenated blood means most of the oxygen has been removed by tissues, and therefore the blood is darker.

Anomalies of the inferior vena cava and renal veins: embryologic and surgical considerations. Anomaly of the vena cava inferior; report of fatality after ligation. Azygos continuation of the inferior vena cava: demonstration by NMR imaging. PMID Both CT and MRI show high accuracy for detecting tumour thrombus, assessing its extent and distinguishing it from bland thrombus Fig. At the same time, the cranial end of the right subcardinal vein forms the suprarenal segment of the IVC and fuses with the developing hepatic IVC [ 9 ]. Posterior cardinal veins persist as paired common iliac veins, whilst the supracardinal veins contribute to the azygos venous system Fig. A key characteristic of this tumour is a retroperitoneal mass limited to the IVC. Federal government websites often end in. Are renal vein and inferior vena cava involvement different? This can be secondary to passive congestion, most commonly secondary to cardiac disease Fig. Inferior vena cava thrombosis.