Breast Cancer
乳腺癌
No.2 Affiliated Hospital Southern Medical UniversityGeneral Surgery 厉周 Richard Leeleezhou888@yahoo.com.cn
1. Introduction 概论
Western countries>100/100,000stable incidencedeclined mortalityChina7-10% of all malignancies2nd most common Ca in ♀ 3% yearly increase rate (highest worldwide)
2. Etiology 病因
Exposure to estrogenAge at menarche < 11y/oAge at menopause > 54y/oAge at first pregnancy > 30y/oFamily history and genetic disorder2-3 folds higher (first degree relatives)5-10% ( ...