The deep circumflex iliac vein is formed by the union of the venae comitantes of the deep iliac circumflex artery.

[1] It drains venous blood from the walls of the iliac fossa.

[2] It empties into the external iliac vein about 2 cm superior to the inguinal ligament,[3] just distal to where the inferior epigastric vein does so.

[1] The DCIV runs across the external iliac artery.

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