External iliac vein

Vena iliaca externa

CardiovascularBlood vesselsPelvisLeft and right

View left in 3D View right in 3D

What it is
Continues the femoral vein above the inguinal ligament and runs along the pelvic brim, medial and then posterior to the external iliac artery, to join the internal iliac vein in front of the sacroiliac joint.
Function
Drains the lower limb and lower abdominal wall.
Size
~1.2–1.5 cm diameter.
Clinical note
Compression of the left iliac vein by the overlying right common iliac artery (May–Thurner syndrome) predisposes to left-leg DVT.