Term Name:	iliolumbar vein
Synonyms:	ilio-lumbar vein, vena iliolumbalis
Definition:	The iliolumbar vein is the vena comitans of the iliolumbar artery. The obturator nerve crosses superficial to it. A single vein is found more commonly than a double vein. It drains vertebral segments four and five. It is closely related to the ascending lumbar vein. [WP,unvetted].
Ontology:	Uberon Ontology [UBERON:0001320]