Gonadal vein
The gonadal veins are paired structures that drain the gonads in males and females. In males it is called the testicular vein (or internal spermatic vein) and in females it is called the ovarian vein. The gonadal veins ascend with the gonadal arteries in the abdomen along the psoas muscle anterior to the ureters. Like the suprarenal veins each side drains differently:
- the left gonadal vein drains into the left renal vein
- the right gonadal vein drains directly into the inferior vena cava
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Gross anatomy
Ovarian veins
Ovarian veins emerge from the ovary as a plexus (pampiniform plexus) in the mesovarium and suspensory ligament. Two veins emerge from the plexus and ascend with the ovarian artery, usually merging into a single vein before termination.
The right ovarian vein arises from the right pampiniform plexus (which is continuous with the uterine plexus) and lies lateral to the right ureter. It ascends anterior to psoas and parallels the right ureter. It crosses the ureter anteromedially halfway between bifurcation of the IVC and the point in which it joins the anterolateral inferior vena cava (IVC).
The left ovarian vein ascends similarly into the abdomen but drains into the left renal vein 1-4.
Testicular veins
The venous circulation of the male gonads comprises two intrascrotal networks; a deep and superficial venous network. The deep network drains the testis, epididymis, and ductus deferens. The superficial network drains the veins of the scrotum.
Veins of the testes and epididymis form the pampiniform plexus. which ascends to form four veins at the level of the superficial inguinal ring and a single testicular vein at the level of the deep inguinal ring. It ascends through the inguinal canal in the spermatic cord 3,4.
The testicular vein ascends in the retroperitoneum on psoas major. Along its course there are variable communications with retroperitoneal veins, abdominal wall veins and renal capsular veins. The left testicular vein invariably drains into the left renal vein. The right testicular vein usually drains into the IVC just below the renal vein, but sometimes drains into the right renal vein.
Variant anatomy
- duplication is common, more often on the left (~13%) than on the right (~2%) 7
- both gonadal veins draining into the left renal vein
- in doubled IVC the left gonadal vein drains into the left IVC
- partially divided gonadal veins with the gonadal arteries running through
- gonadal veins may receive a duodenal or suprarenal vein
- gonadal veins draining into common iliac veins
- right gonadal vein drains into the right renal vein
- may be in the form of a plexus
Radiographic features
CT
- the ovarian veins are frequently used to identify the ovaries; they are useful landmarks particularly for determining the origin of a pelvic mass
- the ovarian vascular pedicle sign is present in 92% of ovarian masses; direct joining of an asymmetrically enlarged gonadal veins with a pelvic mass indicates that the ovary is the organ of origin 2,5
- the ovarian vein is best visualized at level of the origin of the inferior mesenteric artery where it is surrounded by retroperitoneal fat and in the pelvis medial to external iliac vessels 2,5
- testicular vein normally measures 1-3 mm in diameter 8
Related pathology
- ovarian vein phlebolith
- ovarian vein reflux and pelvic congestion syndrome
- ovarian vein thrombosis
- ovarian vein stenosis and occlusion
- ovarian vein syndrome
- ovarian venous varix
- varicocele
Related Radiopaedia articles
Anatomy: Abdominopelvic
- skeleton of the abdomen and pelvis
- muscles of the abdomen and pelvis
- spaces of the abdomen and pelvis
- anterior abdominal wall
- posterior abdominal wall
- abdominal cavity
- pelvic cavity
- perineum
- abdominal and pelvic viscera
- gastrointestinal tract
- spleen
- hepatobiliary system
-
endocrine system
-
adrenal gland
- adrenal vessels
- chromaffin cells
- variants
- pancreas
- organs of Zuckerkandl
-
adrenal gland
-
urinary system
-
kidney
- renal pelvis
- renal sinus
- avascular plane of Brodel
-
variants
- number
- fusion
- location
- shape
- ureter
- urinary bladder
- urethra
- embryology
-
kidney
- male reproductive system
-
female reproductive system
- vulva
- vagina
- uterus
- adnexa
- Fallopian tubes
- ovaries
- broad ligament (mnemonic)
- variant anatomy
- embryology
- blood supply of the abdomen and pelvis
- arteries
-
abdominal aorta
- inferior phrenic artery
- celiac artery
- superior mesenteric artery
- middle suprarenal artery
- renal artery (variant anatomy)
- gonadal artery (ovarian artery | testicular artery)
- inferior mesenteric artery
- lumbar arteries
- median sacral artery
-
common iliac artery
- external iliac artery
-
internal iliac artery (mnemonic)
- anterior division
- posterior division (mnemonic)
- variant anatomy
-
abdominal aorta
- portal venous system
- veins
- anastomoses
- arterioarterial anastomoses
- portal-systemic venous collateral pathways
- watershed areas
- arteries
- lymphatics
- innervation of the abdomen and pelvis
- lumbar plexus
-
sacral plexus
- lumbosacral trunk
- sciatic nerve
- superior gluteal nerve
- inferior gluteal nerve
- nerve to piriformis
- perforating cutaneous nerve
- posterior femoral cutaneous nerve
- parasympathetic pelvic splanchnic nerves
- pudendal nerve
- nerve to quadratus femoris and inferior gemellus muscles
- nerve to internal obturator and superior gemellus muscles