Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer Resections

To date, curative resection is the only chance for cure for patients suffering from pancreatic ductal adenoacarcinoma (PDAC). Despite low reported rates of microscopic tumor infiltration (R1) in most studies, tumor recurrence is a common finding in patients with PDAC and contributes to extremely low...

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Main Authors: Irene Esposito, Anna Melissa Schlitter
Format: Article
Language:English
Published: MDPI AG 2010-11-01
Series:Cancers
Subjects:
Online Access:http://www.mdpi.com/2072-6694/2/4/2001/
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author Irene Esposito
Anna Melissa Schlitter
author_facet Irene Esposito
Anna Melissa Schlitter
author_sort Irene Esposito
collection DOAJ
description To date, curative resection is the only chance for cure for patients suffering from pancreatic ductal adenoacarcinoma (PDAC). Despite low reported rates of microscopic tumor infiltration (R1) in most studies, tumor recurrence is a common finding in patients with PDAC and contributes to extremely low long-term survival rates. Lack of international definition of resection margins and of standardized protocols for pathological examination lead to high variation in reported R1 rates. Here we review recent studies supporting the hypothesis that R1 rates are highly underestimated in certain studies and that a microscopic tumor clearance of at least 1 mm is required to confirm radicality and to serve as a reliable prognostic and predictive factor.
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spelling doaj.art-a74f115f896240668a8376bc1d1499412023-09-03T05:50:12ZengMDPI AGCancers2072-66942010-11-01242001201010.3390/cancers2042001Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer ResectionsIrene EspositoAnna Melissa SchlitterTo date, curative resection is the only chance for cure for patients suffering from pancreatic ductal adenoacarcinoma (PDAC). Despite low reported rates of microscopic tumor infiltration (R1) in most studies, tumor recurrence is a common finding in patients with PDAC and contributes to extremely low long-term survival rates. Lack of international definition of resection margins and of standardized protocols for pathological examination lead to high variation in reported R1 rates. Here we review recent studies supporting the hypothesis that R1 rates are highly underestimated in certain studies and that a microscopic tumor clearance of at least 1 mm is required to confirm radicality and to serve as a reliable prognostic and predictive factor.http://www.mdpi.com/2072-6694/2/4/2001/pancreatic cancerresection marginR1definition of resection statuspathological standardization
spellingShingle Irene Esposito
Anna Melissa Schlitter
Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer Resections
Cancers
pancreatic cancer
resection margin
R1
definition of resection status
pathological standardization
title Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer Resections
title_full Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer Resections
title_fullStr Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer Resections
title_full_unstemmed Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer Resections
title_short Definition of Microscopic Tumor Clearance (R0) in Pancreatic Cancer Resections
title_sort definition of microscopic tumor clearance r0 in pancreatic cancer resections
topic pancreatic cancer
resection margin
R1
definition of resection status
pathological standardization
url http://www.mdpi.com/2072-6694/2/4/2001/
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