The treatment of ductal carcinoma in situ of the breast.

As screening mammography has become more frequently used to screen asvmptomatic women, the diagnosis of ductal carcrinoma in situ (DCIS) has become commonplace. Its treatment remains contentious, ranging from mastectomy to local excision alone. The goal of treatment for DCIS is breast conservation, however, as many as 25% of women with this diagnosis may require mastectomy.

Nonpalpable breast lesions: biopsy methods and patient management.

Mammography has become a major, if not the best available, diagnostic tool for the early detection of breast cancer. Screening has progressed substantially from the anecdotes of physicians in the early 1970s, that is, the assumption that "if I can't feel it, it's not there." Although controversy continues regarding the earliest age at which screening mammography truly lowers the death rate from breast cancer, the fact that mammography detects breast cancer years before it might be discovered as a mass in the breast cannot be challenged.