I-125 radioactive seed

I-125 radioactive seed

Radiation oncology A small radioactive seed implanted into the prostate under ultrasound guidance for treating prostate CA–brachytherapy. See Ultrasound-guided transperineal permanent palladium-103 implantation of prostate.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.