A method of removing lesions by implanting a radioactive seed at the location of the lesion, locating the lesion with the radioactive seed, and removing the lesion with the radioactive seed. A kit is also provided by the present invention for use in removing lesions by implanting a radioactive seed at the location of the lesion, locating the lesion with the radioactive seed, and removing the lesion with the radioactive seed. Other embodiments of the invention include: a disposable needle preloaded with radioactive seed(s) and radioactive seeds comprising hooks to ensure proper localization of the seed(s) in the patient.