The Nuclear Medicine Department at St Gregorios International Cancer Care Center is the first comprehensive Nuclear Medicine Department in Central Travancore. Nuclear Medicine is a branch of medicine that makes use of radioactive medicines for diagnosis and treatment of diseases. A small dose of radioactive medicine is introduced into the body (oral route or by injections) and functions of various organs in the body are imaged. Relatively larger doses of radioactive medicines are used for treatment, mainly for treatment for hyper functioning thyroid gland, thyroid cancer, treatment of bone pain, treatment of certain types of cancer like neuroendocrine tumors and prostate cancer. Diagnostic scans and treatment in nuclear medicine are very safe and painless. The nuclear medicine department has facilities like gamma camera, PET/CT, low dose and high dose radionuclide therapy and thyroid cancer clinic.