Influence of age at first pregnancy on breast parenchymal pattern: a preliminary report.
Two groups of women, aged 50 and 60, were randomly selected from a mammographic screening project. The parenchymal pattern was classified according to Wolfe. A correlation was found between a known risk factor, age at first pregnancy, and parenchymal pattern. The results support the hypothesis of a relationship between breast parenchymal pattern and risk of cancer development.
D000368:Aged; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology; D005260:Female; D006801:Humans; D008327:Mammography; D008423:Maternal Age; D008875:Middle Aged; D010298:Parity; D011247:Pregnancy; D012306:Risk