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Ipsilateral breast tumor recurrence in early stage breast cancer patients treated with breast conserving surgery and adjuvant radiation therapy: Concordance of biomarkers and tumor location from primary tumor to in-breast tumor recurrence

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World Journal of Clinical Oncology 2020年第1期11卷 20-30页

作者： Juhi M Purswani Fauzia Shaikh S Peter Wu Jennifer Chun Kim Freya Schnabel nelly huppert Carmen A Perez Naamit K Gerber Department of Radiation Oncology New York University School of MedicineNew YorkNY 10016United States Department of Surgery New York University School of MedicineNew YorkNY 10016United States

BACKGROUND Patients with an in-breast tumor recurrence(IBTR)after breast-conserving therapy have a high risk of distant metastasis and disease-related *** clinical parameters that increase risk for recurrence after IBTR remains a *** To describe primary and recurrent tumor characteristics in patients who experience an IBTR and understand the relationship between these characteristics and disease *** Patients with stage 0-II breast cancer treated with lumpectomy and adjuvant radiation were identified from institutional databases of patients treated from 2003-2017 at our *** survival(OS),disease-free survival,and local recurrence-free survival(LRFS)were estimated using the Kaplan Meier *** identified patients who experienced an isolated *** of hormone receptor status and location of tumor from primary to recurrence was *** effect of clinical and treatment parameters on disease outcomes was also *** We identified 2164 patients who met the eligibility *** median follow-up for all patients was 3.73[interquartile range(IQR)2.27-6.07]***-year OS was 97.7%(95%CI:96.8%-98.6%)with 28 deaths;5-year LRFS was 98.0%(97.2-98.8)with 31 *** identified 37 patients with isolated IBTR,19(51.4%)as ductal carcinoma in situ and 18(48.6%)as invasive disease,of whom 83.3%had an in situ *** time from initial diagnosis to IBTR was 1.97(IQR:1.03-3.5)*** information was available for 30 of 37 *** whole-breast dose was 40.5 Gy and 23 patients received a boost to the tumor ***-five of thirty-two(78.1%)patients had concordant hormone receptor status,HER-2 receptor status,and estrogen receptor(ER)(P=0.006)and progesterone receptor(PR)(P=0.001)status from primary to IBTR were significantly *** were no observed changes in HER-2 status from primary to *** concordance between quadrant of primary to IBTR was 10/19[(62.2%

关键词： Ipsilateral breast tumor recurrence Breast conservation Adjuvant radiation

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