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Detection of rare variant of “circumaortic venous collar” during infrarenal abdominal aortic aneurysm repair: case report and literature review

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Summary

Background

Congenital retroperitoneal veins anomalies (RVAs) are very infrequent, but have a relevant clinical importance in abdominal aortic surgery.

Methods

We hereby present a unique case of a man with infrarenal abdominal aortic aneurysm associated with a rare anatomical variation of the left renal vein (LRV) consisting of a small ventral suprarenal and a large retroaortic vein, both draining directly into the inferior vena cava. Starting from this case we carried out an extensive literature review on clinical and surgical implications of RVAs.

Results

The retroaortic renal vein was detected preoperatively by computed tomography angiography (CTA), but the suprarenal vein was unexpected. Both infrarenal aortic clamping and aneurysm resection resulted demanding and required careful exposure of the anomalous suprarenal vein and identification of both renal arteries origin. No intraoperative bleeding or other complications occurred.

Conclusions

The awareness and recognition of RVAs is mandatory to avoid injuries during abdominal aortic surgery.

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Acknowledgments

The authors wish to thank Ms Elena Harwood for the linguistic revision of this paper.

Conflict of interest

Francesco De Santis, Gabriele Mani, Guido Martini, Mathias Colangelo and Norma Decaminada declare that they have no conflict of interest.

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Correspondence to Francesco De Santis MD, PhD.

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De Santis, F., Mani, G., Martini, G. et al. Detection of rare variant of “circumaortic venous collar” during infrarenal abdominal aortic aneurysm repair: case report and literature review. Eur Surg 46, 85–89 (2014). https://doi.org/10.1007/s10353-013-0241-9

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  • DOI: https://doi.org/10.1007/s10353-013-0241-9

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