inferior rectal vein

inferior rectal vein

n.
Any of the veins that pass to the internal pudendal vein from the venous plexus around the anal canal.
References in periodicals archive ?
However, distal rectal cancers may metastasize initially to the lungs through the inferior rectal vein, which drains into the inferior vena cava rather than into the portal venous system [3].
The SRV inflow to IRVP occurs at about 10 cm distance in lateral wall of rectum and the middle and inferior rectal veins (IRV) act as the outflowing channels [5] (Figures 1(a) and 1(b)).
It reaches middle and inferior rectal veins, which drain to the systemic circulation (inferior vena cava) then into the heart and on to the liver.

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