Clinical presentation and prognosis of adenosquamous carcinoma of the pancreas: matched-pair analysis with pancreatic ductal adenocarcinoma

Introduction - Adenosquamous carcinoma of the pancreas (ASCP) is a rare subtype of pancreatic adenocarcinoma. The aim of this study was to investigate the characteristics and outcomes of ASCP in comparison to pancreatic ductal adenocarcinoma (PDAC). - Materials and methods - All patients with ASCP t...

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Hauptverfasser: Kaiser, Jörg (VerfasserIn) , Hinz, Ulf (VerfasserIn) , Mayer, Philipp (VerfasserIn) , Hank, Thomas (VerfasserIn) , Niesen, Willem (VerfasserIn) , Hackert, Thilo (VerfasserIn) , Gaida, Matthias (VerfasserIn) , Büchler, Markus W. (VerfasserIn) , Strobel, Oliver (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 16 February 2021
In: European journal of surgical oncology
Year: 2021, Jahrgang: 47, Heft: 7, Pages: 1734-1741
ISSN:1532-2157
DOI:10.1016/j.ejso.2021.02.011
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.ejso.2021.02.011
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0748798321001025
Volltext
Verfasserangaben:Joerg Kaiser, Ulf Hinz, Philipp Mayer, Thomas Hank, Willem Niesen, Thilo Hackert, Matthias M. Gaida, Markus W. Büchler, Oliver Strobel

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520 |a Introduction - Adenosquamous carcinoma of the pancreas (ASCP) is a rare subtype of pancreatic adenocarcinoma. The aim of this study was to investigate the characteristics and outcomes of ASCP in comparison to pancreatic ductal adenocarcinoma (PDAC). - Materials and methods - All patients with ASCP treated between December 2001 and December 2017 were identified from a prospective database. Clinicopathological and follow-up data were analyzed. A nested case-control-study with matched-pair analysis was performed to compare overall survival of ASCP and PDAC. - Results - Of 4009 patients undergoing surgery for pancreatic adenocarcinoma 91 patients had ASCP. Compared to PDAC ASCP were larger (4.0 vs. 3.2 cm; p < 0.0001), more frequently involved lymph nodes (88% vs. 78%; p = 0.0216), more frequently showed poor differentiation (G3: 79% vs. 36%; p < 0.0001) and more frequently were located in the pancreatic tail (19% vs. 10%; p = 0.0179). Overall median post-resection-survival was shorter in ASCP (10.8 vs. 20.5 months in PDAC; p = 0.0085), but 5-year survival rates were comparable (18.2% vs. 17.5%). After matching for the unevenly distributed prognostic factors survival after resection of ASCP and PDAC was comparable (p = 0.8301). Localization in the head or several parts of the pancreas, high CA 19-9 levels, and M1 disease were independent predictors of survival in patients with ASCP. - Conclusion - ASCP is more aggressive with poorer differentiation and higher rates of lymph node metastases compared to PDAC. In spite of a shorter median survival, 5-year survival rates after surgical resection of about 18% can be expected in ASCP and support resection as part of a multimodal therapy as the treatment of choice in this rare cancer. 
650 4 |a Adenosquamous carcinoma 
650 4 |a Outcome 
650 4 |a Pancreas 
650 4 |a Prognosis 
650 4 |a Survival 
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