Neuroendocrine tumors of the pancreas: a retrospective single-center analysis using the ENETS TNM-classification and immunohistochemical markers for risk stratification

URN to cite this document:

urn:nbn:de:bvb:355-epub-330348 Copy

DOI to cite this document:

10.5283/epub.33034 Copy

Brunner, Stefan ; Weber, Florian ; Werner, Jens M ; Agha, Ayman ; Farkas, Stefan A. ; Schlitt, Hans-Jürgen ; Hornung, Matthias

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Date of publication of this fulltext: 10 Dec 2015 16:17

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Details

Item type:	Article
Journal or Publication Title:	BMC Surgery
Publisher:	BioMed Central
Volume:	15
Number of Issue or Book Chapter:	49
Page Range:	pp. 1-10
Date:	25 April 2015
Institutions:	UNSPECIFIED
Projects:	Open Access Publizieren (DFG)
Identification Number:	Value Type 10.1186/s12893-015-0033-1 DOI
Keywords:	Neuroendocrine Tumors Of The Pancreas, Tnm Classification, Risk Stratification, Lymph Node Metastasis, E-Cadherin, Β-Catenin, Cyclin D1, Il-17a
Dewey Decimal Classification:	600 Technology > 610 Medical sciences Medicine
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Yes
Item ID:	33034

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Abstract

Background This study was performed to assess the 2006 introduced ENETS TNM-classification with respect to patient survival and surgical approach for patients who underwent surgery for a neuroendocrine tumor of the pancreas (PNET). Methods Between 2001 and 2010 38 patients after resection of a PNET were investigated regarding tumor localization and size. Further, patient survival with regards to ...

Abstract

Background
This study was performed to assess the 2006 introduced ENETS TNM-classification with respect to patient survival and surgical approach for patients who underwent surgery for a neuroendocrine tumor of the pancreas (PNET).

Methods
Between 2001 and 2010 38 patients after resection of a PNET were investigated regarding tumor localization and size. Further, patient survival with regards to the new TNM-classification, the operation methods and immunohistochemical markers was analyzed.

Results
The estimated mean survival time of the 38 patients was 91 ± 10 months (female 116 ± 9, male 56 ± 14 months; p = 0.008). The 5-year survival rate was 63.9%. Patient survival differed significantly depending on tumor size (pT1 107 ± 13, pT2 94 ± 16, pT3 44 ± 7 and pT4 18 ± 14 months; P = 0.006). Patients without lymph node metastasis survived significantly longer compared to patients with positive lymph node status (108 ± 9 vs. 19 ± 5 months; P < 0.001). However, survival in patients with and without distant metastasis did not differ significantly (92 ± 11 vs. 80 ± 23 months; P = 0.876). Further, the tumor grading significantly influenced patient survival (G1 111 ± 12, G2 68 ± 12 and G3 21 ± 14 months; P = 0.037).

Conclusions
As part of the TNM-classification especially lymph node status and also tumor size and grading were identified as important factors determining patient survival. Further, gender was demonstrated to significantly influence survival time. If an R0 resection was achieved in patients with distant metastases patient survival was comparable to patients without metastasis.

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Metadata last modified: 25 Nov 2020 23:18

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