| sacral venous plexus | A venous plexus on the pelvic surface of the sacrum, formed by tributaries to the lateral sacral veins. Synonym: plexus venosus sacralis. (05 Mar 2000) |
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| prominence of venous valvular sinus | A slight eminence on the external wall of a vein correlating with the valvular sinus immediately proximal to the leaflets of the venous valve. Synonym: agger valvae venae. (05 Mar 2000) |
| hepatic venous segments | Each of the four territories of the liver separately drained by the hepatic veins. Synonym: hepatic venous segments. (05 Mar 2000) |
| prostatic venous plexus | A venous plexus, arising chiefly from the dorsal vein of the penis, situated below the base of the bladder at the sides of the prostate. See: prostaticovesical plexus. Synonym: plexus venosus prostaticus, plexus pudendalis, Santorini's labyrinth. (05 Mar 2000) |
| nasal venous arch | An arch formed at the root of the nose by the two supratrochlear veins connected by a transverse vein. (05 Mar 2000) |
| neonatal pulmonary venous hypertension | <radiology> With cardiomegaly, hypoplastic left heart, critical aortic stenosis, cor triatriatum, pulmonary venous atresia, normal heart size, infradiaphragmatic TAPVR (12 Dec 1998) |
| suboccipital venous plexus | The extensive plexus of veins in the suboccipital region. Synonym: plexus venosus suboccipitalis. (05 Mar 2000) |
| superficial palmar venous arch | The venous arch accompanying the superficial palmar arterial arch it consists usually of paired venae comitantes and is drained by the superficial ulnar and radial veins. Synonym: arcus venosus palmaris superficialis. (05 Mar 2000) |
| deep palmar venous arch | The venous arch that accompanies the deep palmar arterial arch it usually consists of paired venae comitantes. Synonym: arcus venosus palmaris profundus. (05 Mar 2000) |
| deep venous thrombosis | <cardiology> A blood clot that forms in a vein resulting in obstruction of venous flow. most common clinically in the lower extremities. (27 Sep 1997) |
| systemic venous hypertension | Increased pressure in the veins ultimately leading to the right atrium nearly always due to disease of the right heart but occasionally due to blockade of one or both venae cavae. (05 Mar 2000) |
| dural venous sinuses | Endothelium-lined venous channels in the dura mater. Synonym: sinus durae matris, cerebral sinuses, cranial sinuses, sinuses of dura mater, venous sinuses. (05 Mar 2000) |
| internal carotid venous plexus | A venous network around the internal carotid artery in the carotid canal of the temporal bone, connecting with the cavernous sinus and internal jugular vein. Synonym: plexus venosus caroticus internus, internal carotid (nervous) plexus, plexus caroticus internus. (05 Mar 2000) |
| total anomalous pulmonary venous return | <radiology> (TAPVR) admixture lesion: cyanosis, increased pulmonary blood flow, must have L to R shunt for survival (e.g., atrial septal defect) associated with, atrial septal defect, asplenia (12 Dec 1998) |
| total or partial anomalous pulmonary venous connections | Connections in which some or all of the pulmonary veins connect to the right atrium or one of its tributaries. (05 Mar 2000) |