Breast Cancer Genomics
(BRCA)

Alternate Names

  • Breast Cancer Gene Assay
  • Oncotype DX

A small amount of tissue will be taken during breast cancer surgery then examined with a microscope for the presence of certain gene markers. This test is performed when breast cancer is newly diagnosed, and is used to determine the best course of treatment. Certain gene markers are identified and counted and a recurrence score is calculated. A low recurrence score indicates a decreased possibility of cancer recurrence, and chemotherapy is usually not necessary. A higher recurrence score indicates the presence of a more aggressive form of cancer and an increased possibility of cancer recurrence; and chemotherapy will be used to treat the cancer.

Test results may take up to two weeks to return from the lab.

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