Abstract
Radiolabeled molecules have become valuable tools in the diagnosis, monitoring, and treatment of cancer, particularly breast cancer. Through the use of radiotracers, clinicians can target specific tumor cells, assess microenvironments, and identify metastases. These radiopharmaceuticals, based on radionuclides, enable both imaging and therapeutic applications, leading to personalized cancer treatment. Techniques such as PET, SPECT, and the use of nanoparticles for theranostics are at the forefront of innovation, offering improved precision in both diagnosis and therapy. This review explores the various ways in which radiotracers are leveraged in modern oncology, with a focus on breast cancer, and highlights recent advancements in targeted radionuclide therapy and nanoparticle-based applications.