Evidence map›Paper›PMID 42719921›Full record

ArticleSurgical case reports2026

Synchronous Multifocal Intraductal Tubulopapillary Neoplasm of the Pancreas Treated with Total Pancreatectomy: A Case Report.

Kohei Suto, Mariko Tsukagoshi, Ayako Yamazaki, Emi Saito, Ryosuke Fukushima, Ryo Muranushi, Kouki Hoshino, Norihiro Ishii, Takamichi Igarashi, Norio Kubo and 2 more

Abstract readCase Reports
In one paragraph

Article in Surgical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Kohei SutoDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Mariko TsukagoshiDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Ayako YamazakiClinical Department of Pathology, Gunma University Hospital, Maebashi, Gunma, Japan.
Emi SaitoClinical Department of Pathology, Gunma University Hospital, Maebashi, Gunma, Japan.
Ryosuke FukushimaDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Ryo MuranushiDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Kouki HoshinoDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Norihiro IshiiDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Takamichi IgarashiDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Norio KuboDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Kenichiro ArakiDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Ken ShirabeDivision of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAn intraductal tubulopapillary neoplasm (ITPN) is a rare pancreatic tumor characterized by scant mucin production. Even when associated with an invasive carcinoma component, its prognosis is generally considered more favorable than that of conventional pancreatic ductal adenocarcinoma. However, its pathogenesis and optimal treatment strategy remain unclear. Herein, we report a case of a synchronous multifocal ITPN treated with total pancreatectomy. CASE PRESENTATION: A man in his 50s was referred to Gunma University Hospital for evaluation of pancreatic duct abnormalities after CT revealed a caliber change in the main pancreatic duct in the pancreatic body and distal pancreatic atrophy. Further evaluation demonstrated lesions associated with main pancreatic duct strictures in the pancreatic body and tail. A diagnosis of resectable pancreatic body and tail cancers was therefore established, and the patient received 2 courses of neoadjuvant chemotherapy (NAC) with gemcitabine plus S-1. Imaging after NAC revealed a new lesion in the pancreatic head. Endoscopic ultrasonography-guided fine-needle aspiration confirmed adenocarcinoma, and the patient was diagnosed with synchronous multifocal pancreatic cancers involving the pancreatic head, body, and tail. Total pancreatectomy was performed. Histopathological examination demonstrated 3 noncontiguous synchronous multifocal ITPNs, each with an independent invasive carcinoma component, in the pancreatic head, body, and tail. The postoperative course was uneventful, and the patient was discharged on POD 15. The patient required no adjuvant therapy and remained recurrence-free at 11 months postoperatively.

conclusionsWe describe an extremely rare case of a synchronous multifocal ITPN. The noncontiguous distribution observed in this case raises the possibility of multicentric development, although alternative mechanisms cannot be excluded. Further case accumulations and molecular analyses are required to clarify the pathogenesis of this disease and establish optimal treatment strategies.

Indexed as

intraductal tubulopapillary neoplasmmulticentricitypancreatic intraductal neoplasmsynchronous multifocal intraductal tubulopapillary neoplasm (ITPN)total pancreatectomy

Identifiers

PMID42719921
PMCPMC13557851

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.