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Three-dimensional Computed Tomography Evaluation of the Vasculature of Right-side Colon Cancer.

Anticancer Research 2023 December
BACKGROUND/AIM: From an oncological perspective, central ligation of the feeding vessel is an important approach to consider when performing colon cancer surgery. This study aimed to use three-dimensional computed tomography (3D-CT) to clarify the vascular anatomy for performing central vascular ligation to improve the accuracy of minimally invasive surgery (MIS) performed to treat advanced right-side colon cancer.

PATIENTS AND METHODS: This descriptive study was conducted at one institution and targeted 92 patients with right-side colon cancer whose vascular anatomy was evaluated with 3D-CT before surgery between January 2014 and December 2020 at Tokyo Medical University Hospital.

RESULTS: In 49 patients (53.3%), the ileocolic artery was ventral to the superior mesenteric vein (SMV), whereas in 43 patients (46.7%), it was dorsal to the SMV. The right colic artery was present in 31 patients (33.7%). The middle colic artery was present in all patients (100%). A common duct type was present in 80 patients (87.0%). Branching directly from the superior mesenteric artery without a common duct was observed in 12 patients (13.0%). Twenty-one patients (22.9%) had an accessory superior mesenteric artery.

CONCLUSION: The vascular structure of the right-side colon is highly complex. Conducting 3D-CT evaluations of the vessel anatomy is very useful for surgeons who conduct MIS, and is considered to enable central ligation to be performed safely and improve the quality of surgery, which will benefit patients.

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