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Lookup NU author(s): Dr Beate Haugk, Steven White, Professor Sanjay PandanaboyanaORCiD
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© 2024 International Hepato-Pancreato-Biliary Association Inc.Background: Intraductal oncocytic papillary neoplasms (IOPNs) of the pancreas are now considered a separate entity to intraductal papillary mucinous neoplasms (IPMN). Invasive IOPNs are extremely rare, and their recurrence patterns, response to adjuvant chemotherapy and long-term survival outcomes are unknown. Methods: Consecutive patients undergoing pancreatic resection (2010–2020) for invasive IOPNs or adenocarcinoma arising from IPMN (A-IPMN) from 18 academic pancreatic centers worldwide were included. Outcomes of invasive IOPNs were compared with A-IPMN invasive subtypes (ductal and colloid A-IPMN). Results: 415 patients were included: 20 invasive IOPN, 331 ductal A-IPMN and 64 colloid A-IPMN. After a median follow-up of 6-years, 45% and 60% of invasive IOPNs had developed recurrence and died, respectively. There was no significant difference in recurrence or overall survival between invasive IOPN and ductal A-IPMN. Overall survival of invasive IOPNs was inferior to colloid A-IPMNs (median time of survival 24.4 months vs. 86.7, months, p = 0.013), but the difference in recurrence only showed borderline significance (median time to recurrence, 22.5 months vs. 78.5 months, p = 0.132). Adjuvant chemotherapy, after accounting for high-risk features, did not reduce rates of recurrence in invasive IOPN (p = 0.443), ductal carcinoma (p = 0.192) or colloid carcinoma (p = 0.574). Conclusions: Invasive IOPNs should be considered an aggressive cancer with a recurrence rate and prognosis consistent with ductal type A-IPMN.
Author(s): Lucocq J, Haugk B, Joseph N, Hawkyard J, White S, Mownah O, Menon K, Furukawa T, Inoue Y, Hirose Y, Sasahira N, Mittal A, Samra J, Sheen A, Feretis M, Balakrishnan A, Ceresa C, Davidson B, Pande R, Dasari BVM, Tanno L, Karavias D, Helliwell J, Young A, Nunes Q, Urbonas T, Silva M, Gordon-Weeks A, Barrie J, Gomez D, van Laarhoven S, Nawara H, Doyle J, Bhogal R, Harrison E, Roalso M, Zaharia C, Ciprani D, Aroori S, Ratnayake B, Koea J, Capurso G, Bellotti R, Stattner S, Alsaoudi T, Bhardwaj N, Jeffery F, Connor S, Cameron A, Jamieson N, Roberts K, Soreide K, Gill AJ, Pandanaboyana S
Publication type: Article
Publication status: Published
Journal: HPB
Year: 2024
Pages: epub ahead of print
Online publication date: 20/07/2024
Acceptance date: 15/07/2024
ISSN (print): 1365-182X
ISSN (electronic): 1477-2574
Publisher: Elsevier B.V.
URL: https://doi.org/10.1016/j.hpb.2024.07.410
DOI: 10.1016/j.hpb.2024.07.410
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