 |
| Coronal thick slab MIP images showing dilated left gonadal vein reaching the renal vein. |
 |
| Coronal thick slab MIP images showing unilateral pelvic varices on left side. |
 |
| Volume rendered images(posterior view) showing engorged left gonadal vein and ipsilateral pelvic varices. |
·
In grade I, retrograde flow remained in the left ovarian vein, not
reaching the parauterine veins.
·
In grade II, the retrograde flow advanced into the ipsilateral
parauterine veins and no farther.
·
Finally, in grade III, the retrograde flow crossed the midline
passing through the uterus from the left into the right parauterine plexus.
·
The flow-pathway was assessed from the level of the kidneys to the
pelvic floor.
Causes :-
·
Dilated and tortuous ovarian veins secondary to retrograde flow
through incompetent valves
·
Obstructing anatomic anomalies
§ Retroaortic left renal vein
§ Left ovarian vein congestion due
to compression of the left renal vein by the superior mesenteric artery
(nutcracker phenomenon)
§ Right common iliac vein
compression
§ Secondary congestion can be seen
in various disorders including:
·
Valvular incompetence
·
Portal hypertension
·
Acquired inferior vena cava syndrome
No comments:
Post a Comment
Please leave your comments