Persistent sciatic vein

Last revised by Mohammad Taghi Niknejad on 30 Jan 2023

Citation, DOI, disclosures and article data

Citation:

Kearns C, Niknejad M, Persistent sciatic vein. Reference article, Radiopaedia.org (Accessed on 01 May 2024) https://doi.org/10.53347/rID-161259

DOI:

https://doi.org/10.53347/rID-161259

Permalink:

https://radiopaedia.org/articles/161259

rID:

161259

Article created:

30 Jan 2023, Ciléin Kearns

Disclosures:

At the time the article was created Ciléin Kearns had no financial relationships to ineligible companies to disclose.

View Ciléin Kearns's current disclosures

Last revised:

30 Jan 2023, Mohammad Taghi Niknejad ◉

Disclosures:

At the time the article was last revised Mohammad Taghi Niknejad had no financial relationships to ineligible companies to disclose.

View Mohammad Taghi Niknejad's current disclosures

Revisions:

2 times, by 2 contributors - see full revision history and disclosures

Systems:

Vascular, Paediatrics

Tags:

variants, variant, embryology

Synonyms:

axial vein

Persistent sciatic vein is one of two known embryonic veins in the lower limb which may persist, the other being the lateral marginal vein. Although both are associated with Klippel-Trenaunay syndrome ^1-3, only the lateral marginal vein is also referred to as the Klippel-Trenaunay vein.

The sciatic (or axial) vein is an embryonic lower limb vein that drains the lower thigh to the internal iliac, and usually regresses before birth ⁴. The persistent sciatic vein follows the course of the sciatic nerve in the posterior lower limb, and drains the lower thigh into the common iliac vein ⁵. It may have no valves, predisposing to chronic venous insufficiency.