Clinical Endoscopy

Hideyuki Anan

2 Articles

Diagnostic value of homogenous delayed enhancement in contrast-enhanced computed tomography images and endoscopic ultrasound-guided tissue acquisition for patients with focal autoimmune pancreatitis: Keisuke Yonamine, Shinsuke Koshita, Yoshihide Kanno, Takahisa Ogawa, Hiroaki Kusunose, Toshitaka Sakai, Kazuaki Miyamoto, Fumisato Kozakai, Hideyuki Anan, Haruka Okano, Masaya Oikawa, Takashi Tsuchiya, Takashi Sawai, Yutaka Noda, Kei Ito; Clin Endosc 2023;56(4):510-520. Published online April 5, 2023; DOI: https://doi.org/10.5946/ce.2022.142

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Background
/Aims: We aimed to investigate (1) promising clinical findings for the recognition of focal type autoimmune pancreatitis (FAIP) and (2) the impact of endoscopic ultrasound (EUS)-guided tissue acquisition (EUS-TA) on the diagnosis of FAIP.
Methods
Twenty-three patients with FAIP were involved in this study, and 44 patients with resected pancreatic ductal adenocarcinoma (PDAC) were included in the control group.
Results
(1) Multivariate analysis revealed that homogeneous delayed enhancement on contrast-enhanced computed tomography was a significant factor indicative of FAIP compared to PDAC (90% vs. 7%, p=0.015). (2) For 13 of 17 FAIP patients (76.5%) who underwent EUS-TA, EUS-TA aided the diagnostic confirmation of AIPs, and only one patient (5.9%) was found to have AIP after surgery. On the other hand, of the six patients who did not undergo EUS-TA, three (50.0%) underwent surgery for pancreatic lesions.
Conclusions
Homogeneous delayed enhancement on contrast-enhanced computed tomography was the most useful clinical factor for discriminating FAIPs from PDACs. EUS-TA is mandatory for diagnostic confirmation of FAIP lesions and can contribute to a reduction in the rate of unnecessary surgery for patients with FAIP.

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A multidisciplinary approach is essential for differentiating autoimmune pancreatitis from pancreatic adenocarcinoma
Sung-Hoon Moon
Clinical Endoscopy.2023; 56(4): 457. CrossRef

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Pancreatic duct lavage cytology combined with a cell-block method for patients with possible pancreatic ductal adenocarcinomas, including pancreatic carcinoma in situ: 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; Clin Endosc 2023;56(3):353-366. Published online November 16, 2022; DOI: https://doi.org/10.5946/ce.2022.021

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

Citations

Citations to this article as recorded by

Early diagnosis of pancreatic cancer via pancreatic juice cytology with a cell-block method in a patient with altered anatomy
Yasuo Otsuka, Kosuke Minaga, Akane Hara, Kentaro Yamao, Mamoru Takenaka, Takaaki Chikugo, Masatoshi Kudo
Endoscopy International Open.2024; 12(06): E764. CrossRef
Role of endoscopic retrograde cholangiopancreatography in early diagnosis of pancreatic cancer
Yasutaka ISHII, Masahiro SERIKAWA, Shinya NAKAMURA, Juri IKEMOTO, Shiro OKA
Suizo.2024; 39(4): 247. CrossRef
Cell block created from pancreatic duct lavage is another jigsaw puzzle to diagnose early pancreatic ductal adenocarcinoma
Rungsun Rerknimitr
Clinical Endoscopy.2023; 56(3): 313. CrossRef

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