目的：探讨双侧乳腺癌的临床特点。
Objective: To investigate the clinical characteristics of bilateral breast cancer.
纤腺囊性增生症亦为双侧乳腺癌的危险因素。
Fibrocystic proliferation was risky factor of double-sides breast cancer.
目的：探讨发生双侧乳腺癌的相关因素和对预后的影响。
Objective: to study relative factors and prognostic effects of occurrence of double sides primary breast cancer.
双侧乳腺癌的发生与病理类型无关，未发现有乳腺癌家族史。
The occurrence of double sides breast cancer was not related to pathological types and family history.
方法：回顾性分析我院最近3年新收治的6例双侧乳腺癌患者的临床资料。
Methods: The clinical data of 6 bilateral breast cancer in recent 3 years were retrospectively reviewed.
结论：1、患一侧乳腺癌、有乳腺癌家族史等是发生双侧乳腺癌的重要危险因素。
Conclusions: 1. The main risk factors of BPBC may be once having breast cancer, familial history of breast cancers, etc.
结果：发病年龄呈现年轻化趋势，尤其同时性双侧乳腺癌明显，绝经前女性更易发生双侧乳腺癌；
Results: The age of patients suffering from double sides breast cancer was trending younger. The females before menopause had more probabilities of suffering from double sides breast cancer.
结果：本组6例双侧乳腺癌占同期收治乳腺癌的2.1%，均是双侧原发性乳腺癌，其中同时性双侧乳腺癌有4例。
Results: The 6 bilateral breast cancer accounted for 2.1% of all breast cancer cases for the same period.
结论双侧对照观察法可提高乳腺癌诊断的准确率。
Conclusion the mammography observation of bilateral control can increase the sensitivity, specificity and accuracy of the diagnosis of breast cancer.
结论：双侧原发性乳腺癌的预后取决于腋窝淋巴结有无转移，肿瘤大小以及ER受体是否阳性。
Conclusions the prognosis of bilateral primary mammary cancer is decided by whether axilla lymph node has transferred, whether the tumor is big or small, and whether the er receptor is positive.
结论：双侧原发性乳腺癌的预后取决于腋窝淋巴结有无转移，肿瘤大小以及ER受体是否阳性。
Conclusions the prognosis of bilateral primary mammary cancer is decided by whether axilla lymph node has transferred, whether the tumor is big or small, and whether the er receptor is positive.
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