Millions of patients depend on a rare radioactive form of one element to scan them for disease. (scientificamerican.com)
Large and small animal nuclear medicine is available and is a subspecialty of radiology in which radioisotopes (compounds containing radioactive forms of atoms) are put into the body to evaluate organ function or localize bone disease such as stress fractures or tumor metastasis. (vet.purdue.edu)
Iodine is absorbed and used by the thyroid gland in the neck, so radioactive forms can concentrate there and promote cancer. (businessinsider.com)