مطالعه وريد كليوي چپ در 45 نمونه انساني تشريح شده

The study of left renal vein in 45 Human cadaver

The left renal vein usually forms in front of aorta by anastomosis between left and right subcardinal veins. In the embryonic period connection between supracardinal and iliac veins with subcardinal transiently form collar vein around abdominal aorta. Usually posterior branches of this collar vein disappear. But, sometimes it is permanent and anteior branches of the collar is absorbed. In this condition left renal vein will appeared posterior to the aorta. In present study we are dissected 45 cadavers in the Tehran Medical Sciences Univ, Ardabil Azad univ, Sanandaje medical univ, Semnan medical Univ. The left renal vein was passed behind the abdominal aorta only case and enter to IVC at the level of L3. This varioation in addition to pressure on left renal vein can effect on drainage of left testicular vein that is surgically important.