Preoperative Chemoradiotherapy Does Not ... - Springer Link
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Preoperative Chemoradiotherapy Does Not ... - Springer Link
Oct 15, 2009 - chemoradiation on mesorectal lymph node retrieval under terms of a ... (including quality assessed total mesorectal excision), extensive ...
J Gastrointest Surg (2010) 14:96–103 DOI 10.1007/s11605-009-1057-6
ORIGINAL ARTICLE
Preoperative Chemoradiotherapy Does Not Necessarily Reduce Lymph Node Retrieval in Rectal Cancer Specimens—Results from a Prospective Evaluation with Extensive Pathological Work-up Thilo Sprenger & Hilka Rothe & Kia Homayounfar & Tim Beissbarth & B. Michael Ghadimi & Heinz Becker & Torsten Liersch
Received: 13 August 2009 / Accepted: 22 September 2009 / Published online: 15 October 2009 # 2009 The Author(s). This article is published with open access at Springerlink.com
Abstract Purpose Preoperative chemoradiotherapy (CRT) is supposed not only to reduce lymph node metastases but also lymph node recovery in rectal cancer specimens. The objective of this prospective study was to determine the effects of chemoradiation on mesorectal lymph node retrieval under terms of a meticulous histopathological evaluation. Methods Specimens from 64 consecutive patients with stage II/III rectal cancer receiving preoperative 5-FU-based CRT were investigated. All patients were treated within the German Rectal Cancer Trial CAO/ARO/AIO-04. After surgery (including quality assessed total mesorectal excision), extensive pathological diagnostics was performed with embedding and microscopic evaluation of the whole mesorectal soft tissue compartment. Results A total number of 2,021 lymph nodes were recovered (31.6 per specimen) within pathological work-up. There was no significant correlation between the number of retrieved nodes and patient- as well as tumor-dependent parameters. Lymph node size constantly amounted for less than 0.5 cm. Twenty patients (31.3%) had persistent nodal metastases. A considerable incidence of residual micrometastatic involvement in lymph nodes
