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Biologic behavior of resected BRCA-mutated pancreatic cancer: Comparison with sporadic pancreatic cancer and other BRCA-related cancers
Korean Association of Hepato-Biliary-Pancreatic Surgery 2021;25 Suppl 1:S149
Published online June 30, 2021;  https://doi.org/10.14701/ahbps.BP-PP-1-2
Copyright © 2021 Korean Association of Hepato-Biliary-Pancreatic Surgery.

Sung Hyun KIM, Chang Moo KANG*

Department of Hepatobiliary and Pancreatic Surgery, Yonsei University College of Medicine, Seoul, Korea
Correspondence to: Chang Moo KANG (cmkang@yuhs.ac)
Presenter: Sung Hyun KIM (ohliebe@yuhs.ac)
 Abstract
Introduction: Since margin-negative resection is essential for the cure of pancreatic cancer (PC), early detection of PC is important. Although PC is the third most common cancer associated with BRCA1/2 mutations, clinical research regarding BRCA mutations in resected PC are rare. In this study, we investigated the oncologic characteristics of resected PC with BRCA mutation to suggest management strategies.
Methods: We retrospectively reviewed data from 493 patients who were confirmed to be pathogenic BRCA1/2 mutation carriers between January 2007 and December 2019. We investigated the oncologic characteristics of PC patients by comparing them with resected sporadic PC and other BRCA-related cancer groups (breast cancer, ovarian cancer, and others).
Results: Ten BRCA mutation carriers (2.0%) experienced PC, and PC onset was significantly later than that of BRCA-related breast cancer (age: breast vs. pancreas, 45.0 vs. 53.5 years; p = 0.050). Six patients underwent pancreatectomy and their long-term survival outcomes did not differ from those of sporadic PC patients (disease free survival: BRCA1/2 vs. sporadic, 10.0 months vs. 9.0 months; p = 0.504; overall survival: BRCA1/2 vs. sporadic, 29.0 months vs. 35.0 months; p = 0.520).
Conclusions: BRCA-mutated PC occurs later than BRCA-mutated breast cancer. Active genetic testing to identify BRCA1/2 mutation carriers at the onset of breast cancer and continuous long-term surveillance of these patients can provide opportunities to detect BRCA-mutated PC at a resectable stage.

 

August 2021, 25 (3)
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