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Doctor insights on: What Is A Retroaortic Left Renal Vein

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What is a retroaortic left renal vein?

What is a retroaortic left renal vein?

Common variant: The left renal vein drains the left kidney into the inferior vena cava (ivc). To get there, it has to go around the aorta. Most often, this path is in front of the aorta. Less commonly, it passes behind (retro aortic). This is of no significance unless surgery in that area is necessary, in which case it's helpful for the surgeon to know ahead of time. ...Read more

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Dr. Ted King
1,879 doctors shared insights

Veins (Definition)

Veins are thin walled vessels that carry deoxygenated blood ...Read more


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What is an incidental retroaortic left renal vein? The key term here would be "incidental" as it appears that something caused it to be retroaortic

What is an incidental retroaortic left renal vein? The key term here would be "incidental" as it appears that something caused it to be retroaortic

Normal finding.: The left renal vein which comes off the inferior vena cava normally crosses in front of the aorta and not behind it in the usual anatomy. In about 5% of people the left renal vein will pass behind the aorta (retro aortic). This is a normal anatomic variation and normal for that person. It is usually identified on ct. ...Read more

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Need help understanding CT of abdomen... Liver: portal vein is patent, retroaortic left renal vein, a normal variant. Can it be caused from injuries?

Need help understanding CT of abdomen... Liver: portal vein is patent, retroaortic left renal vein, a normal variant. Can it be caused from injuries?

Vascular : This is a normal finding. Most left renal veins cross anterior to the aorta. A retrospective vein means it crosses behind the aorta to drain into the inferior vena cava. It is of no clinical significance to you unless you have certain surgeries in the future. ...Read more

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Incidental note of a circumaortic left renal vein, crosses the midline. Definition please?

Incidental note of a circumaortic left renal vein, crosses the midline. Definition please?

Anatomical variant: Normally, the left renal vein crosses over the aorta and drains into the vena cava. A circum-aortic left renal vein is simply a vein that crosses both above and behind the aorta. It's not a problem in the least and could only cause a vascular surgeon an issue in an open aortic operation if he wasn't aware of it. So no problem! you can still call the hogs! wps! ...Read more

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An MRA confirmed that I have nutcracker syndrome in my left renal vein and right hepatic artery arising from the proximal Superior mesenteric artery. Could this be the cause of my uncontrolled BP &HR?

An MRA confirmed that I have nutcracker syndrome in my left renal vein and right hepatic artery arising from the proximal Superior mesenteric artery. Could this be the cause of my uncontrolled BP &HR?

Yes: Limitation of blood flow to a kidney will typically raise BP. Often in such a case the BP will be very difficult to control with meds unless the blood flow is restored. A stent in the renal artery may help, but there are several studies suggesting that if meds can control the BP, then procedural risks may not be warranted. You should consult with a vascular surgeon or interventional radiologist. ...Read more

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Went to the ER for gallstone pain the radiologist spotted Nutcracker syndrome/ left renal vein entrapment syndrome. Can a vascular surgeon use this CT?

Went to the ER for gallstone pain the radiologist spotted Nutcracker syndrome/ left renal vein entrapment syndrome. Can a vascular surgeon use this CT?

Imaging: A contrasted CT is better than a non-contrasted CT for NCS. Make a CD of the images and see a vascular surgeon. Your surgeon will decide what kind of imaging they need to help you decide what to do. ...Read more

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How can a big left sided varicocele(grade 3) increase pressure to right renal vein and cause some pain in right testis? (anatomical question)

How can a big left sided varicocele(grade 3)  increase pressure to right renal vein and cause some pain in right testis? (anatomical question)

Unlikely: Varicoceles are common in adolescents 7-15 %. 95% occur on the left side only. This condition is usually without symptoms of discomfort. A grade 3 varicocele may be considered for repair as they can lead to low sperm counts and infertility. If your symptoms are on the right side you should see a PCP or urologist to assess further ...Read more

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Can you die from renal vein transposition surgery?

Can you die from renal vein transposition surgery?

Surgery risks: there is always a death when surgery is involved and how high that risk is depends on the type of surgery and anesthesia needed. Talk to your surgeon and he will have that information for you. ...Read more