Clinical Endoscopy

Koji Watanabe

2 Articles

Peroral pancreatoscopy with videoscopy and narrow-band imaging in intraductal papillary mucinous neoplasms with dilatation of the main pancreatic duct: Yui Kishimoto, Naoki Okano, Ken Ito, Kensuke Takuma, Seiichi Hara, Susumu Iwasaki, Kensuke Yoshimoto, Yuto Yamada, Koji Watanabe, Yusuke Kimura, Hiroki Nakagawa, Yoshinori Igarashi; Clin Endosc 2023;56(2):261-261. Published online March 6, 2023; DOI: https://doi.org/10.5946/ce.2021.083.e1; Corrects: Clin Endosc 2022;55(2):270

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Peroral Pancreatoscopy with Videoscopy and Narrow-Band Imaging in Intraductal Papillary Mucinous Neoplasms with Dilatation of the Main Pancreatic Duct: Yui Kishimoto, Naoki Okano, Ken Ito, Kensuke Takuma, Seiichi Hara, Susumu Iwasaki, Kensuke Yoshimoto, Yuto Yamada, Koji Watanabe, Yusuke Kimura, Hiroki Nakagawa, Yoshinori Igarashi; Clin Endosc 2022;55(2):270-278. Published online December 6, 2021; DOI: https://doi.org/10.5946/ce.2021.083; Correction in: Clin Endosc 2023;56(2):261

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Background
/Aims: Endoscopic evaluation of intraductal papillary mucinous neoplasms (IPMNs) is useful in determining whether the lesions are benign or malignant. This study aimed to examine the usefulness of peroral pancreatoscopy (POPS) in determining the prognosis of IPMNs.
Methods
POPS with videoscopy was performed using the mother–baby scope technique. After surgery, computed tomography/magnetic resonance cholangiopancreatography or ultrasonography and blood tests were performed every 6 months during the follow-up.
Results
A total of 39 patients with main pancreatic duct (MPD)–type IPMNs underwent POPS using a videoscope, and the protrusions in the MPD were observed in 36 patients. The sensitivity and specificity of cytology/biopsy performed at the time of POPS were 85% and 87.5%, respectively. Of 19 patients who underwent surgery, 18 (95%) patients had negative surgical margins and 1 (5%) patient had a positive margin.
Conclusions
In IPMNs with dilatation of the MPD, POPS is considered effective if the lesions can be directly observed. The diagnosis of benign and malignant lesions is possible depending on the degree of lesion elevation. However, in some cases, slightly elevated lesions may increase in size during the follow-up or multiple lesions may be simultaneously present; therefore, careful follow-up is necessary.

Citations

Citations to this article as recorded by

Identification of the course of plastic stent‐induced pancreatic duct mucosal change in chronic pancreatitis using peroral pancreatoscopy (with video)
Kensuke Takuma, Naoki Okano, Yusuke Kimura, Koji Watanabe, Hiroki Nakagawa, Kensuke Hoshi, Masashi Miura, Naobumi Tochigi, Yoshinori Igarashi, Takahisa Matsuda
DEN Open.2025;[Epub] CrossRef
Pancreatoscopy-Guided Endotherapies for Pancreatic Diseases
Yuri Hanada, Raj J. Shah
Gastrointestinal Endoscopy Clinics of North America.2024; 34(3): 417. CrossRef
Peroral pancreatoscopy with videoscopy and narrow-band imaging in intraductal papillary mucinous neoplasms with dilatation of the main pancreatic duct
Yui Kishimoto, Naoki Okano, Ken Ito, Kensuke Takuma, Seiichi Hara, Susumu Iwasaki, Kensuke Yoshimoto, Yuto Yamada, Koji Watanabe, Yusuke Kimura, Hiroki Nakagawa, Yoshinori Igarashi
Clinical Endoscopy.2023; 56(2): 261. CrossRef
Predicting Malignancy by Peroral Pancreatoscopy of an Intraductal Papillary Mucinous Neoplasm with a Dilated Main Pancreatic Duct: Is Seeing Enough?
Yun Nah Lee, Jong Ho Moon
Clinical Endoscopy.2022; 55(2): 213. CrossRef

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