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Course and termination
Along the pelvic side wall, the vein travels between the ureter and the internal iliac artery before terminating by draining into the internal iliac vein 1. A cadaveric study of 150 hemi-pelvises found the obturator vein to be the most inferior structure of the obturator neurovascular bundle in 47% of specimens 2.
An enlarged pubic vein may replace the obturator vein ref.