Segments of the femoral artery and femoral vein:

• The common femoral artery and vein (arteria & vena femoralis communis) proximally to the branching points of the deep femoral artery and vein, respectively.
• The subsartorial artery and vein (arteria & vena subsartorialis) distally to these branching points. In the past, this segment has been called the superficial femoral artery and vein. This was a potentially harmful misnomer since it is clinically a deep vein and not a superficial vein, and thus a possible site for a deep vein thrombosis, that may be overlooked as a superficial vein for anticoagulant therapy.^[1] In 2001, during the World Congress of the International Union of Phlebology, it was decided to change the name from superficial femoral vein simply to femoral vein,^[2] but the use of superficial femoral vein still persists in some sources. Therefore, the term subsartorial vein was introduced as a replacement name for the distal segment.^[3][4]

References:

1. ↑ Hammond I (Nov 2003). "The superficial femoral vein". Radiology 229 (2): 604; discussion 604–6. DOI:10.1148/radiol.2292030418. PMID 14595157.
2. ↑ (1 April 2005). "Nomenclature of the veins of the lower limb: Extensions, refinements, and clinical application". Journal of Vascular Surgery 41 (4): 719–724. DOI:10.1016/j.jvs.2005.01.018. PMID 15874941.
3. ↑ Mikael Häggström (2019). "Subsartorial Vessels as Replacement Name for Superficial Femoral Vessels". International Journal of Anatomy, Radiology and Surgery: AV01–AV02.
4. ↑ Amarnath C and Hemant Patel (٢٠٢٣) Comprehensive Textbook of Clinical Radiology - Volume III: Chest and Cardiovascular system، Elsevier Health Sciences ISBN: 9788131263617. Page 1072