gynecology and obstetrics
Breast Cancer
Introduction
Breast cancers are most often epithelial tumors involving the ducts or lobules. Most patients present with an asymptomatic mass discovered during examination or screening mammography. Diagnosis is made by biopsy. Treatment usually includes surgical excision, often with radiation therapy, and with or without adjuvant chemotherapy, endocrine therapy, or both. In the United States, breast cancer is the most common cancer in women, except for skin cancers ( General references ). Breast cancer is the 2nd leading cause of cancer death (the most common is lung cancer) in the overall female population but is the leading cause of cancer death in Black women. Black women are more likely to die from breast cancer than any other race or ethnicity; Asian and Pacific Islander women have the lowest death rate from breast cancer. In 2023, in women in the United States, it is estimated there will be 297,790 new cases of invasive breast cancer 55,720 new cases of in situ breast cancer 43,700 breast cancer deaths In 2023, in men in the United States, it is estimated there will be 2800 new cases of invasive breast cancer and 530 deaths from it ( General references ). Manifestations, diagnosis, and management are the same in men and women, although men tend to present at a later stage. 