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Open Access 01-12-2018 | Case report

Concurrent presentation of an intraductal tubulopapillary neoplasm and intraductal papillary mucinous neoplasm in the branch duct of the pancreas, with a superior mesenteric artery aneurysm: a case report

Authors: Kenta Inomata, Minoru Kitago, Hideaki Obara, Yoko Fujii-Nishimura, Masahiro Shinoda, Hiroshi Yagi, Yuta Abe, Taizo Hibi, Kentaro Matsubara, Go Oshima, Yasuhito Sekimoto, Masazumi Inoue, Osamu Itano, Michiie Sakamoto, Yuko Kitagawa

Published in: World Journal of Surgical Oncology | Issue 1/2018

Abstract

Background

Since the concept of intraductal tubulopapillary neoplasm (ITPN) was introduced in the current World Health Organization classification of tumors, the number of reports of ITPN occurrence has increased gradually. However, ITPN is usually located in the main pancreatic duct, with few reports of a branch duct ITPN. As a result, imaging protocols for the diagnosis of a branch duct ITPN have not been established.

Case presentation

We report a case of a concurrent presentation of a branch duct ITPN and intraductal papillary mucinous neoplasm (IPMN) in the head of the pancreas, with a superior mesenteric artery (SMA) aneurysm. Initially, the cystic masses in the pancreatic head were diagnosed as branch duct IPMNs, with treatment consisting of a pylorus-preserving pancreaticoduodenectomy, in combination with an aneurysmectomy performed for treatment of the SMA aneurysm. Pathological examination confirmed these cysts were a combination of branch-type ITPN and IPMN. The patient recovered from the treatment without complication, with no evidence of recurrence over a period of 34 months post-surgery.

Conclusion

This case report of a synchronous presentation of an ITPN and IPMN indicates the difficulty in differentiating these two types of neoplasms in the branch duct of the pancreatic head.

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Title: Concurrent presentation of an intraductal tubulopapillary neoplasm and intraductal papillary mucinous neoplasm in the branch duct of the pancreas, with a superior mesenteric artery aneurysm: a case report
Authors: Kenta Inomata
Minoru Kitago
Hideaki Obara
Yoko Fujii-Nishimura
Masahiro Shinoda
Hiroshi Yagi
Yuta Abe
Taizo Hibi
Kentaro Matsubara
Go Oshima
Yasuhito Sekimoto
Masazumi Inoue
Osamu Itano
Michiie Sakamoto
Yuko Kitagawa
Publication date: 01-12-2018
Publisher: BioMed Central
Published in: World Journal of Surgical Oncology / Issue 1/2018
Electronic ISSN: 1477-7819
DOI: https://doi.org/10.1186/s12957-018-1391-9

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Concurrent presentation of an intraductal tubulopapillary neoplasm and intraductal papillary mucinous neoplasm in the branch duct of the pancreas, with a superior mesenteric artery aneurysm: a case report

Abstract

Background

Case presentation

Conclusion

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Abstract

Background

Case presentation

Conclusion

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