What is a lymphoscintigraphy study, and why has my physician ordered it?
A lymphoscintigraphy study is a nuclear medicine test conducted in patients who have had a positive biopsy for skin melanoma or breast cancer. It uses a small amount of radioactive material and a special camera to identify the sentinel lymph node so it can be removed. The sentinel lymph node is the first lymph node to which cancer spreads from a primary tumor.
This presurgical study is performed on the same day as the surgery.