Publication Name	World Journal of Gastrointestinal Oncology
Manuscript ID	121292
DOI	10.4251/wjgo.121292
Country	Japan

Category	Gastroenterology & Hepatology
Manuscript Type	Case Report
Article Title	Preoperative vascular simulation for distal bile duct cancer with a preduodenal portal vein: A case report
Manuscript Source	Unsolicited Manuscript
All Author List	Shinnosuke Harata, Yoichi Matsuo, Haruka Shigemori, Tomofumi Kaneko, Haruka Kirihara, Ryo Nakajima, Shigeyuki Kosaka, Kaori Watanabe, Yushi Yamakawa, Kenta Saito, Tomoya Shamoto, Kazuyoshi Shiga, Takafumi Sato, Hiroyuki Sagawa, Tatsuya Tanaka, Kazuki Hayashi and Shuji Takiguchi
Funding Agency and Grant Number
Corresponding Author	Yoichi Matsuo, MD, PhD, Professor, Department of Gastroenterological Surgery, Nagoya City University East Medical Center, 1-2-23 Wakamizu, Chikusa-ku, Nagoya 464-8547, Aichi, Japan. matsuo@med.nagoya-cu.ac.jp
Key Words	Preduodenal portal vein; Distal bile duct cancer; Total pancreatectomy; Median arcuate ligament syndrome; Vascular anomaly; Preoperative simulation; Case report
Core Tip	Preduodenal portal vein is an extremely rare congenital vascular anomaly that can complicate pancreaticobiliary surgery. We report a case of distal bile duct cancer with preduodenal portal vein and multiple congenital anomalies, including median arcuate ligament syndrome, intestinal malrotation, polysplenia, and pancreatic hypoplasia. Preoperative illustration-based vascular simulation, generated through careful review of the original computed tomography dataset, enabled precise understanding of the anomalous anatomy and clinically relevant collateral flow patterns. This directly influenced the surgical strategy, allowing safe completion of total pancreatectomy. This case highlights the practical value of careful preoperative vascular assessment and surgeon-directed schematic integration in complex pancreaticobiliary surgery.
Citation	Harata S, Matsuo Y, Shigemori H, Kaneko T, Kirihara H, Nakajima R, Kosaka S, Watanabe K, Yamakawa Y, Saito K, Shamoto T, Shiga K, Sato T, Sagawa H, Tanaka T, Hayashi K, Takiguchi S. Preoperative vascular simulation for distal bile duct cancer with a preduodenal portal vein: A case report. World J Gastrointest Oncol 2026; In press DOI: https://doi.org/10.4251/wjgo.121292
PDF	121292-in-press.pdf

Received	2026-03-23 02:07
Peer-Review Started	2026-03-23 02:08
First Decision by Editorial Office Director	2026-04-16 07:48
Return for Revision	2026-04-16 11:54
Revised	2026-05-06 04:46
Publication Fee Transferred
Second Decision by Editor	2026-06-25 02:30
Second Decision by Editor-in-Chief
Final Decision by Editorial Office Director	2026-06-25 05:56
Articles in Press	2026-06-25 05:56
Edit the Manuscript by Language Editor
Typeset the Manuscript

ISSN	1948-5204 (online)
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