This summary discusses primary epithelial breast cancers in women. The breast is rarely affected by other tumors such as lymphomas, sarcomas, or melanomas. Refer to the following PDQ summaries for more information on these cancer types:. Breast cancer also affects men and children and may occur during pregnancy, although it is rare in these populations. Refer to the following PDQ summaries for more information:.
Breast Cancer Treatment (Adult) (PDQ®)–Health Professional Version
Malignant Neoplastic Diseases-Adult
Breast development happens in certain stages during a woman's life: first before birth, again at puberty, and later during the childbearing years. This starts with a thickening in the chest area called the mammary ridge or milk line. By the time a baby girl is born, nipples and the beginnings of the milk-duct system have formed. The first thing to develop are lobes, or small subdivisions of breast tissue. Mammary glands develop next and consist of 15 to 24 lobes. Mammary glands are influenced by hormones activated in puberty.
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Disability Claims Process Video Series. What impairments do these listings cover? We use these listings to evaluate all cancers malignant neoplastic diseases except certain cancers associated with human immunodeficiency virus HIV infection. We use the criteria in