Discordance of HER2 expression in primary breast cancer and related axillary lymph node metastasis
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 522
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شناسه ملی سند علمی:
ACPLMED19_016
تاریخ نمایه سازی: 20 آبان 1397
چکیده مقاله:
Introduction: Over-expression of Her-2 can be an underlying reason for breast cancer (BC). Her-2 expression is in association with poor prognosis. Her-2 expression in metastatic auxiliary lymph nodes of BC patients can affect disease management significantly, as under-estimation of Her-2 expression in lymph nodes of BC patients influences patients life-expectancy negatively. The aim of current study is to evaluate Her-2 expression in primary breast cancer, its accordance with metastatic auxiliary lymph nodes and also to assess this association with some prognostic factors. Methods: This is a cross-sectional study on 70 patients with breast cancer conducted in Isfahan University of Medical Sciences in 2015. Age, number of involved lymph nodes, Her-2, ER and PR expression and in case of Her-2 expression, its grade in primary breast cancer were recorded. Her-2 expression was evaluated in the metastatic auxiliary lymph node by immunohistochemistry method. Obtained data were analyzed with IBM SPSS 22 United States. Descriptive data are reported in mean± standard deviation. For analytics, T-test, Chi-square and ANOVA were used. P-value of less than 0.05 was considered significant. Results: Mean age of BC patients was 50.10± 12.60. 48.6% of samples showed discordance of primary BC and lymph node metastasis. Our study found positiveconversion in 12.5% of patients who has primary BC negative results with positive metastatic lymph nodes and 42.1% of negative conversion. In this study, Her2 concordance was not in association neither with patients age nor primary tumor grade. Lower number of metastatic lymph nodes was significantly associated with Her-2 expression concordance (P-value-0.01). Conclusion: In current study, we found high rate of discordance of Her2 expression in primary breast cancer with metastatic lymph nodes. The number of metastatic lymph nodes affected Her-2 expression concordance diversely.
کلیدواژه ها:
نویسندگان
Azar Naimi
Assistant Professor of Pathology, Department of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan
Bahar Saffar
Assistant Professor of Pathology, Department of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan
Fereshteh Mohammadizadeh
Associate Professor of Pathology, Department of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan