Abstract

Objectives: To document the variations in the tributaries of inferior vena cava (IVC) with double common iliac veins, retro aortic renal veins and to establish embryological and clinic-anatomical correlations of such variation. Materials and Methods: The findings were noted after thorough and meticulous dissection of the abdomen of 50 cadavers in the department of Anatomy, Bhaskar Medical College, India. Photographic documentation of the variation was also made. Results: Variations were reported in 2 cadavers. 1) In one cadaver the left renal vein, after its origin from the kidney passed obliquely behind the abdominal aorta, joined the IVC at the level of 3rd lumber vertebra below the attachment of right crus of diaphragm. Left renal artery was normal in position. 2) In another cadaver, there was a communication between the right internal and external iliac veins at the pelvic brim anterior to the sacroiliac joint. From there two right common iliac veins, one appeared as continuation of internal iliac vein(common iliac vein I) and the other as a continuation of external iliac vein (common iliac vein II) ran upwards to join the IVC. Conclusion: The variation can be explained in the light of embryological development. In addition, knowledge of such variation is important for carrying out surgical procedures in the abdomen.

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