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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/14756
Title: Pathologic changes in breast cancer after anti-estrogen therapy
Authors: Norasate Samarnthai
Richard Elledge
Thomas J. Prihoda
Jian Huang
Suleiman Massarweh
I. Tien Yeh
Mahidol University
University of Texas at San Antonio
Medical College of Wisconsin
University of Kentucky HealthCare
Keywords: Medicine
Issue Date: 1-Jul-2012
Citation: Breast Journal. Vol.18, No.4 (2012), 362-366
Abstract: Breast cancer patients do not commonly receive anti-estrogens prior to surgical excision. We reviewed a cohort of patients who received preoperative anti-estrogen therapy after baseline biopsy and then had a repeat biopsy after several weeks on treatment. Patients with estrogen receptor positive tumors received anastrozole and fulvestrant in combination with gefitinib. Core needle biopsies were performed at day 1 and 21, and tumors were completely excised if operable at day 112. All patients were postmenopausal. Following treatment, tumors had degenerative changes including smudged nuclei, decreased nuclear size, intranuclear vacuoles, vacuolated cytoplasm, and increased cellular discohesion. In addition, increased tubule formation and intracytoplasmic lumina were seen in 6/9 cases (66.7%) and decreased mitotic rate was demonstrated in 7/9 cases (77.8%). These findings indicate increased differentiation of the tumor cells in response to anti-estrogen therapy and that may correlate with clinical response. © 2012 Wiley Periodicals, Inc.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84863722120&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/14756
ISSN: 15244741
1075122X
Appears in Collections:Scopus 2011-2015

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