Pancreatic Duct Lavage Cytology Combined with a Cell-block Method for Patients with Possible Pancreatic Ductal Adenocarcinomas, Including Pancreatic Carcinoma in Situ

Overview

Journal Clin Endosc

Date 2023 Jun 1

PMID 37259244

Authors

Hiroaki Kusunose

Shinsuke Koshita

Yoshihide Kanno

Takahisa Ogawa

Toshitaka Sakai

Keisuke Yonamine

Kazuaki Miyamoto

Fumisato Kozakai

Hideyuki Anan

Kazuki Endo

Haruka Okano

Masaya Oikawa

Takashi Tsuchiya

Takashi Sawai

Yutaka Noda

Kei Ito

Affiliations

Soon will be listed here.

Abstract

Background/aims: This study aimed to clarify the efficacy and safety of pancreatic duct lavage cytology combined with a cell-block method (PLC-CB) for possible pancreatic ductal adenocarcinomas (PDACs).

Methods: This study included 41 patients with suspected PDACs who underwent PLC-CB mainly because they were unfit for undergoing endoscopic ultrasonography-guided fine needle aspiration. A 6-Fr double lumen catheter was mainly used to perform PLC-CB. Final diagnoses were obtained from the findings of resected specimens or clinical outcomes during surveillance after PLC-CB.

Results: Histocytological evaluations using PLC-CB were performed in 87.8% (36/41) of the patients. For 31 of the 36 patients, final diagnoses (invasive PDAC, 12; pancreatic carcinoma in situ, 5; benignancy, 14) were made, and the remaining five patients were excluded due to lack of surveillance periods after PLC-CB. For 31 patients, the sensitivity, specificity, and accuracy of PLC-CB for detecting malignancy were 94.1%, 100%, and 96.8%, respectively. In addition, they were 87.5%, 100%, and 94.1%, respectively, in 17 patients without pancreatic masses detectable using endoscopic ultrasonography. Four patients developed postprocedural pancreatitis, which improved with conservative therapy.

Conclusion: PLC-CB has an excellent ability to detect malignancies in patients with possible PDACs, including pancreatic carcinoma in situ.

Citing Articles

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