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Abstract Body

Objective: To demonstrate of preservation of left triple renal artery during laparoscopic para-aortic lymphadenectomy

Design: Case study.

Settings: University hospital in Korea.

Patients: A 54-year-old Korean woman with postmenopausal bleeding and thickened endometrium> 3cm presented to our department. The histopathology of biopsied endometrium revealed grade 2 endometrioid adenocarcinoma. The preoperative MRI shows an about 6cm sized large volume of tumor within the endometrial cavity.

Interventions: We perform the laparoscopic staging surgery. Firstly we performed peritoneal washing cytology, LAVH, BSO, pelvic lymphadenectomy. We designated four area for para-aortic lymphadenectomy. During the procedure in area 4, it was confirmed that two left renal arteries were derived from the trunk of the aorta below the left renal vein. The left lower segmental artery was derived from the middle part of the inferior mesenteric artery and left renal vein. The middle segmental artery was derived just below left renal vein. The left main renal artery was located on the dorsal side of the left renal vein at its normal position. We carefully resected the para-aortic lymph nodes to prevent variant renal artery damage.

Conclusions: Laparoscopy is a feasible and safe approach to diagnosis of vascular anomaly during para-aortic lymphadenectomy for gynecologic malignancies. It is very important for the gynecologic oncologist to have knowledge of retroperitoneal vascular anatomy, experience in laparoscopic surgery, and an accurate surgical technique to avoid vascular injury during laparoscopic para-aortic lymphadenectomy.