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乳腺导管原位癌(ductal carcinoma in situ,DCIS)是乳腺导管系统恶性上皮细胞增生。因肿瘤小,临床上较难触及肿物,早期不易确诊。随着新技术和新方法在乳腺肿瘤普查中的广泛应用,DCIS的检出逐渐增多,传统的治疗方法也有了相应的改进。
Ductal ductal carcinoma in situ (DCIS) is a malignant ductal hyperplasia of the mammary duct. Because of small tumors, clinically more difficult to reach the tumor early diagnosis is not easy. With the extensive application of new technologies and new methods in breast cancer screening, the detection of DCIS is gradually increasing, and the traditional treatment methods have also been improved accordingly.