Annals of Oncology Advance Access originally published online on February 13, 2008
Annals of Oncology 2008 19(3):595-597; doi:10.1093/annonc/mdn021
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© The Author 2008. Published by Oxford University Press on behalf of the European Society for Medical Oncology. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org
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Intratumoral heterogeneity of HER2/neu expression and its consequences for the management of advanced breast cancer
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HER2/neu oncogene overexpression has become a paramount prognostic and predictive marker in invasive breast carcinoma [1]. Its expression is usually highly homogeneous in malignant tissue [2]. Some cases of intratumoral heterogeneity have, however, been reported [3] (Figure 1). The impact of this heterogeneity on the natural history of breast cancer and its consequences on clinical management are unknown. We report here three clinical cases illustrating
1 Department of Medical Oncology
2 Department of Pathology, Institut Curie, 26 rue d'Ulm, 75005 Paris, France
* (E-mail: paul.cottu@curie.net)
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