Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Gastrointest Endosc. Sep 16, 2026; 18(9): 124435
Published online Sep 16, 2026. doi: 10.4253/wjge.124435
Published online Sep 16, 2026. doi: 10.4253/wjge.124435
Impact of rapid on-site evaluation in endoscopic ultrasound-guided tissue acquisition for resectable pancreatic body and tail cancer
Toji Murabayashi, Department of Gastroenterology, Ise Red Cross Hospital, Ise 516-8512, Mie, Japan
Toji Murabayashi, Reiko Yamada, Kenji Nose, Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan
Reiko Yamada, Kenji Nose, Hayato Nakagawa, Department of Gastroenterology and Hepatology, Mie University Hospital, Tsu 514-8507, Mie, Japan
Shinya Kawaguchi, Tatsunori Satoh, Department of Gastroenterology, Shizuoka General Hospital, Shizuoka 420-8527, Japan
Hayato Nakagawa, Department of Gastroenterology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan
Author contributions: Murabayashi T conceived and designed the study, collected and analyzed the data, interpreted the results, prepared the figure and tables, and wrote the manuscript; Yamada R and Nakagawa H supervised the study and critically revised the manuscript; Kawaguchi S, Nose K, and Satoh T contributed to data acquisition and interpretation of the results. All authors critically reviewed and approved the final version of the manuscript; all authors were responsible for the decision to submit the manuscript for publication.
AI contribution statement: ChatGPT (OpenAI) was used only for proofreading and language refinement. All scientific content was verified by the authors.
Institutional review board statement: The study protocol was approved by the institutional review boards of all participating institutions. The approval number at Ise Red Cross Hospital was No. ER2024-123.
Informed consent statement: Informed consent was obtained through an opt-out approach via institutional websites.
Conflict-of-interest statement: The authors have no potential conflicts of interest.
Data sharing statement: The datasets generated and/or analyzed during the current study are not publicly available due to privacy and ethical restrictions but are available from the corresponding author upon reasonable request.
Corresponding author: Toji Murabayashi, MD, Department of Gastroenterology, Ise Red Cross Hospital, 1-471-2 Funae, Ise 516-8512, Mie, Japan. murabayashitoji@m2.gmobb.jp
Received: June 15, 2026
Revised: July 23, 2026
Accepted: August 26, 2026
Published online: September 16, 2026
Processing time: 87 Days and 9.9 Hours
Revised: July 23, 2026
Accepted: August 26, 2026
Published online: September 16, 2026
Processing time: 87 Days and 9.9 Hours
Core Tip
Core Tip: This multicenter retrospective study evaluated rapid on-site evaluation (ROSE) during endoscopic ultrasound-guided tissue acquisition for resectable pancreatic body and tail cancer, where needle tract seeding is a concern. The mean number of punctures was 1.55, and per-patient cytologic diagnostic accuracy remained high at 96.8%. A malignant ROSE result had a high positive predictive value, which may support termination of punctures when malignancy is identified on-site.