Alternative Name(s)
Carbohydrate Antigen 27.29, Breast Carcinoma Associated Mucin Antigen, Cancer Associated Breast Antigen (CABA), Cancer Antigen 27.29
Why It Is Done
CA 27-29, also called breast carcinoma-associated antigen, is used as a marker for breast cancer. Eighty percent of women with breast cancer have an increased CA 27-29 level. This marker may be used with other procedures and tumor marker levels such as CA 15-3 to check for recurrences of cancer in previously treated women. Serial measurements monitor treatment response and identify recurrence.
Test Overview
Levels of CA 27-29 may also be increased in cancers of the colon, stomach, kidney, lung, ovary, pancreas, uterus, and liver. Noncancerous conditions associated with elevated CA 27-29 include first trimester pregnancy, endometriosis, ovarian cysts, non-cancerous breast disease, kidney disease, and liver disease.
How To Prepare
No special preparation is needed |