Serum/plasma mass concentration of guided breast lesion localization element (e.g., contrast agent uptake or tracer for imaging-guided biopsy)

What Is This Test Used For?

This test is part of a procedure called **guided breast lesion localization**, often used when a mammogram or ultrasound identifies a suspicious area that may require a biopsy. The test involves injecting a specific substance (e.g., a contrast agent) that helps pinpoint the exact location of the lesion for accurate sampling. This ensures that the biopsy targets the correct area, improving diagnostic accuracy.

How Is the Sample Collected?

A blood sample (serum or plasma) is drawn from a vein in your arm. This sample is then analyzed to measure the concentration of the substance used during the imaging procedure. The timing of the blood draw may depend on when the contrast agent was administered during the imaging process.

What Does the Result Mean?

The result provides quantitative data on the presence and concentration of the localization element in your bloodstream. This information helps healthcare providers confirm the correct placement of the needle or other instruments during the biopsy procedure. Abnormal or unexpected levels may indicate issues with the procedure’s accuracy or potential complications.

When Might This Test Be Needed?

This test is almost always performed as part of a **guided biopsy procedure** when a breast lesion is suspected but not clearly defined by imaging alone. It is not a standalone diagnostic test but rather a tool to assist in precise tissue sampling for further evaluation, such as a biopsy or surgical excision.