Comparison of breast cancer incidence, clinicopathologic features, and risk factor prevalence in women aged 20‐29 at diagnosis to those aged 30‐39.

The article reports on breast cancer incidence in women. Topics include Women younger than 30 were diagnosed with breast cancer, but a number of studies have demonstrated that breast cancer in young women has a more aggressive biology and is associated with poorer outcomes than in postmenopausal women; and patients who were diagnosed at 20-29 with those diagnosed at 30-34 and 35-39 revealed no significant difference in mean tumor size, median anatomic stage, frequency of ductal pathology.