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Published in: Breast Cancer Research and Treatment 3/2012

01-02-2012 | Preclinical Study

Hematogenous and lymphatic tumor cell dissemination may be detected in patients diagnosed with ductal carcinoma in situ of the breast

Authors: Malgorzata Banys, Ines Gruber, Natalia Krawczyk, Sven Becker, Ralph Kurth, Diethelm Wallwiener, Jolanta Jakubowska, Jürgen Hoffmann, Ralf Rothmund, Annette Staebler, Tanja Fehm

Published in: Breast Cancer Research and Treatment | Issue 3/2012

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Abstract

Tumor cell dissemination in bone marrow (BM) and lymph nodes is considered an important step in systemic disease progression and is associated with poor prognosis. Only invasive cancers are assumed to shed isolated tumor cells (ITC) into the bloodstream and infiltrate lymph nodes. However, latest studies indicate that tumor cell dissemination may occur before stroma invasion, i.e., in ductal carcinoma in situ (DCIS). Therefore, the purpose of this study was to examine the incidence of ITC in bone marrow and sentinel lymph nodes (SN) in patients diagnosed with DCIS and its correlation with clinicopathological factors. 266 patients who were treated at the Department of Gynecology and Obstetrics (University Hospital Tuebingen, Germany) between 2003 and 2009 with DCIS were included into this study. BM aspirates were analyzed by immunocytochemistry (pancytokeratin antibody A45-B/B3) using ACIS system (Chromavision) according to the ISHAGE evaluation criteria. SN were analyzed in 221 of these patients by extensive step sectioning and hematoxylin–eosin staining. In 34 of 266 patients (13%), ITC in BM could be detected. There was no correlation found between tumor size, grading, histology, or Van Nuys Prognostic Index and tumor cell dissemination. In two cases, metastatic spread into lymph nodes was observed (pN1mi), whereas in one case, ITC in lymph nodes were detected; however, additional sectioning and immunohistochemical staining of the primary lesion in the cases with positive SN did not reveal invasive cancer. Interestingly, all the three patients were BM negative. Tumor cell dissemination may be detected in patients diagnosed with DCIS. Either these cells have started already to disseminate from preinvasive mammary lesions or from occult invasive tumors or represent the earliest step of microinvasion in a preinvasive lesion. The clinical relevance of these cells has to be further evaluated.
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Metadata
Title
Hematogenous and lymphatic tumor cell dissemination may be detected in patients diagnosed with ductal carcinoma in situ of the breast
Authors
Malgorzata Banys
Ines Gruber
Natalia Krawczyk
Sven Becker
Ralph Kurth
Diethelm Wallwiener
Jolanta Jakubowska
Jürgen Hoffmann
Ralf Rothmund
Annette Staebler
Tanja Fehm
Publication date
01-02-2012
Publisher
Springer US
Published in
Breast Cancer Research and Treatment / Issue 3/2012
Print ISSN: 0167-6806
Electronic ISSN: 1573-7217
DOI
https://doi.org/10.1007/s10549-011-1478-2

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