B

BRCA1

A gene on chromosome 17 that normally helps to suppress cell growth. A person who inherits certain mutations (changes) in a BRCA1 gene has a higher risk of … [Read more...]

BRCA2

A gene on chromosome 13 that normally helps to suppress cell growth. A person who inherits certain mutations (changes) in a BRCA2 gene has a higher risk of … [Read more...]

BRCAPro

A computer program that uses statistics to predict whether a person has an inherited mutation (change) in the BRCA1 and BRCA2 genes. People who have certain … [Read more...]

breakthrough pain

Intense increases in pain that occur with rapid onset even when pain-control medication is being used. Breakthrough pain can occur spontaneously or in relation … [Read more...]

breast

Glandular organ located on the chest. The breast is made up of connective tissue, fat, and breast tissue that contains the glands that can make milk. Also … [Read more...]

breast cancer

Cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). It occurs in both men … [Read more...]

breast carcinoma in situ

There are 2 types of breast carcinoma in situ: ductal carcinoma in situ (DCIS) and lobular carcinoma in situ (LCIS). DCIS is a noninvasive condition in which … [Read more...]

breast density

Describes the relative amount of different tissues present in the breast. A dense breast has less fat than glandular and connective tissue. Mammogram films of … [Read more...]

breast duct

A thin tube in the breast that carries milk from the breast lobules to the nipple. Also called milk duct. … [Read more...]

breast duct endoscopy

A method used to examine the lining of the breast ducts to look for abnormal tissue. A very thin, flexible, lighted tube attached to a camera is inserted … [Read more...]