年轻乳癌的特点近年来,全世界乳腺癌发病率逐年上升,乳腺癌已成为危害我国女性健康的主要恶性肿瘤。我们一般将发病年龄小于35~40岁的乳腺癌患者归为年轻乳腺癌,年轻乳腺癌约占乳腺癌发病率的5%~7%。年轻乳腺癌预后较其他年龄阶段(>40岁)的乳腺癌差,其原因可能与年轻乳腺癌独特的生物学特点有关。年轻乳腺癌往往病灶体积大、肿瘤细胞分化差、淋巴结血管转移率高、多为预后较差的分子分型。这些生物学特点使年轻乳腺癌表现为肿瘤负荷较大,临床易侵袭,分期较晚,对治疗反应不佳;此外,年轻乳腺癌局部复发率可为一般乳腺癌的1.5倍, The characteristics of young breast cancer In recent years, the incidence of breast cancer in the world increased year by year, breast cancer has become a major malignant tumor that endangers the health of women in our country. We generally classify breast cancer patients younger than 35 to 40 years of age as young breast cancer, while young breast cancer accounts for about 5% to 7% of breast cancer. The prognosis of younger breast cancer than other age groups (> 40 years) poor breast cancer, the reason may be related to the unique biological characteristics of young breast cancer. Young breast cancer often lesions large volume, poorly differentiated tumor cells, lymph node vascular transfer rate, mostly poor prognosis molecular typing. These biological characteristics of young breast cancer showed a large tumor load, clinical invasion, late stage, poor response to treatment; In addition, the local recurrence rate of young breast cancer can be 1.5 times the normal breast cancer,