Implant Therapy "Brachytherapy"
Approximately 50 to 150 very small metal seeds are placed directly into the
tumor while the patient is in the operating room. The seeds remain permanently
in the patient, but they decay completely (i.e., are no longer radioactive) in 6
months (Pd-103) to 20 months (I-125).
This type of therapy is used mostly to treat prostate cancer, but is
sometimes used to treat brain cancer.
There is a small possibility that seeds may become dislodged from the
prostate implant patient, and are usually found in the urine. If you
suspect that a seed has become dislodged, and is somewhere in the room,
(other than the toilet), DO NOT ATTEMPT TO PICK UP THE SEED. A dislodged
seed will not be a significant radiation hazard in the patient's room, but
could result in a radiation dose to the hand and fingers if not handled
Radioisotope size and appearance: Pd-103 or I-125 seeds are 5 mm x 1 mm.