A bone scan is a diagnostic imaging test used to detect abnormalities in the bones, including those caused by cancer. It involves the injection of a small amount of radioactive material, typically technetium-99m, into a vein. This material, known as a radiotracer, travels through the bloodstream and is absorbed by the bones. Areas of high radiotracer absorption, known as "hot spots," can indicate potential issues such as cancer, infections, or fractures.
