2024年6月10日 · Circumcaval ureter, also known as retrocaval ureter, is a term used to describe an abnormal course of a ureter that encircles the inferior vena cava. Both of these terms are somewhat misleading, as this configuration is considered a developmental anomaly of the inferior vena cava (IVC).

CT scan demonstrates right-sided hydronephrosis and hydroureter because the right ureter passes behind the inferior vena cava at the level of lower endplate of L3 vertebra. The ureter …

Fascinating case of the uncommon diagnosis of retrocaval ureter, with both CT and MRI correlates. While challenging on a noncontrast nonurographic study, the diagnosis could be made after carefully following the right ureter retrograde from the urinary bladder, where the medialized course between the IVC and aorta is more apparent.

The ureter is slightly dilated proximal to this point and returns to a normal position distal to its retrocaval placement. CT scan below the level of the kidneys demonstrates a more medial

2025年1月29日 · Retrocaval ureter. Coronal reformatted MIPS image from a CT urogram demonstrates medial displacement of the right ureter at the level of L3 (White arrow). The ureter is medial to the pedicle of the vertebral body (blue arrow). The Axial CT (below) shows the inferior ureter (white arrow) coursing posterior to the inferior vena cava (red arrow).

2016年10月8日 · A retrocaval ureter is an uncommon congenital anomaly with an incidence of 1:1,000. The etiology is related to abnormal development of the inferior vena cava (IVC), and not the ureter itself, resulting in a portion of the ureter passing behind the IVC.

Retrocaval ureter may occur at any age and in either sex, although Abeshouse and Tankin (1) in reviewing 58 cases counted 38 males. Many of these were found in the dissecting room, however, where most bodies were male.

2014年3月5日 · Retrocaval ureter results from persistence of the posterior cardinal venous system that anomalously forms the inferior vena cava, and subsequently courses anterior to the ureter for a variable distance. This can cause varying degrees of ureteral obstruction, and surgical intervention is often necessary.

Retrocaval ureter, also known as circumcaval ureter, is a rare congenital anomaly in which the right ureter passes behind the inferior vena cava, then emerges between the IVC and aorta and passes anterior to the IVC.

2016年12月14日 · A circumcaval ureter, also known as retrocaval ureter, is the result of an abnormal development of the inferior vena cava (IVC) and the ureter. The IVC develops ventral of the right ureter due to the persistence of the right subcardinal vein in the lumbar area [1].