ca 15.3 breast cancer

Release time ：Nov-08,2024

Breast cancer is a prevalent malignant tumor with an increasing incidence rate worldwide. CA 15-3, a breast cancer-associated antigen, is commonly utilized as a diagnostic and monitoring marker for breast cancer. However, CA 15-3 levels can be influenced by various factors, necessitating careful interpretation of test results.

Firstly, the normal range for CA 15-3 levels is typically between 0-30 U/mL. A result outside this range may suggest the presence of breast cancer or other conditions. However, CA 15-3 lacks high specificity, meaning an elevated level does not definitively indicate breast cancer. Other benign conditions such as liver or lung diseases can also cause increased CA 15-3 levels.

Secondly, the sensitivity of CA 15-3 is limited. Some breast cancer patients may not exhibit elevated CA 15-3 levels in the early stages, with levels rising as the disease progresses. Thus, CA 15-3 should not be the sole indicator for breast cancer screening and should be used in conjunction with other diagnostic methods, including breast ultrasound and mammography (using a molybdenum target).

Lastly, for patients diagnosed with breast cancer, CA 15-3 can monitor treatment efficacy and disease recurrence. A sustained decrease in CA 15-3 levels during treatment usually indicates a favorable response to therapy. Conversely, a resurgence in CA 15-3 levels may signal tumor recurrence or progression.

In conclusion, while CA 15-3 is a significant breast cancer-associated antigen, its interpretation should be integrated with clinical context and other diagnostic findings. If you have concerns about your CA 15-3 test results, it is advisable to consult a specialist for a more precise diagnosis and treatment recommendations.