INTRODUCTION: Recommendations for adjuvant treatment of DCIS after breast conservation are controversial. We tried to identify further risk factors in a retrospective study of our own practice. PATIENTS AND METHODS: Three hundred and thirty-two patients treated by breast conservation between 1978 and 2001 at the Department of General Surgery, University of Vienna were analysed. Tumour size, nuclear grade, hormone receptors, p53, her-2/neu, multifocality, microinvasion and post-operative therapy (irradiation, tamoxifen or combination) were analysed for their influence on breast recurrence. RESULTS: Overall recurrence rate was 6.1% (8/132). For patients with DCIS showing high nuclear grade or negative estrogen receptor the risk for development of ipsilateral breast recurrence is significantly higher. Newer factors like p53 and her-2/neu do not have any prognostic significance. No recurrence was observed in patients treated by post-operative irradiation and tamoxifen. CONCLUSION: Nuclear grade remains the most significant factor for breast recurrence after DCIS. Hormone receptor status identifies a subset of patients with more favourable prognosis.
INTRODUCTION: Recommendations for adjuvant treatment of DCIS after breast conservation are controversial. We tried to identify further risk factors in a retrospective study of our own practice. PATIENTS AND METHODS: Three hundred and thirty-two patients treated by breast conservation between 1978 and 2001 at the Department of General Surgery, University of Vienna were analysed. Tumour size, nuclear grade, hormone receptors, p53, her-2/neu, multifocality, microinvasion and post-operative therapy (irradiation, tamoxifen or combination) were analysed for their influence on breast recurrence. RESULTS: Overall recurrence rate was 6.1% (8/132). For patients with DCIS showing high nuclear grade or negative estrogen receptor the risk for development of ipsilateral breast recurrence is significantly higher. Newer factors like p53 and her-2/neu do not have any prognostic significance. No recurrence was observed in patients treated by post-operative irradiation and tamoxifen. CONCLUSION: Nuclear grade remains the most significant factor for breast recurrence after DCIS. Hormone receptor status identifies a subset of patients with more favourable prognosis.
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