[TA] a tributary of the internal iliac vein that accompanies the internal pudendal artery as a single or double vessel. It drains the perineum. Synonym(s): vena pudenda interna [TA]
in·ter·nal pu·den·dal vein
(in-tĕr'năl pyū-den'dăl vān) [TA] A tributary of the internal iliac vein that accompanies the internal pudendal artery as a single or double vessel. It drains the perineum.