CA 27.29 is a tumor marker that is often used in the management of breast cancer. It refers to a specific protein called carbohydrate antigen 27.29, which is found at elevated levels in the blood of some individuals with breast cancer.

This marker is primarily used to monitor the progression of breast cancer and the response to treatment in patients who have been diagnosed with the disease. CA 27.29 levels may be measured over time, with increasing levels potentially indicating disease progression or recurrence, while decreasing levels may suggest a positive response to treatment.

It’s important to note that CA 27.29 is not used for screening or diagnosing breast cancer on its own. Instead, it is used in conjunction with other diagnostic tests and imaging studies to provide additional information about the status of the disease.

While CA 27.29 can be a helpful tool in the management of breast cancer, it is not specific to this type of cancer and may also be elevated in other conditions, such as ovarian cancer, pancreatic cancer, liver disease, and benign breast conditions. Therefore, interpretation of CA 27.29 levels should be done in the context of the individual’s clinical history and other diagnostic findings.