When a woman under 40 finds a lump or lesion in her breast, the first step is often a fine needle aspiration (FNAC). This procedure uses a thin needle to collect cells for testing. Because of the high stakes involved with potential cancer, doctors need tools that provide clear, reliable answers quickly.
A review of 245 procedures showed that this test is highly accurate at identifying cancer in younger women. Specifically, the test had an overall accuracy of about 87 percent. For cases labeled as malignant or suspicious for malignancy, the reliability was very high, reaching up to 100 percent. This means when the test flags a concern, doctors can act urgently.
However, there are some nuances to keep in mind. The test had a lower sensitivity of about 81 percent, which means it might not catch every single case perfectly. Additionally, because some studies only looked at known cancer cases, the data on how well it rules out cancer is limited. These results help confirm that while the tool is very reliable for identifying risks, it works best when interpreted carefully by a medical team.
