Base: Anatomic site at the top of an organ. Example: The prostatic base is the extreme end of the prostate that surrounds the urethra adjacent to the bladder.
Benign: Not cancerous. A benign tumor does not invade surrounding tissue or spread to other parts of the body. A benign tumor may grow but it stays put (in the same place).
Benign prostatic hyperplasia: Benign nodular enlargement of the prostate which occur in virtually all men.
Biopsy: Removal of tissue. Example: needle biopsy of the prostate yields delicate tissue cores that can be examined microscopically by a pathologist to determined if there is cancer.
Bladder: Hollow organ that stores and excretes fluid: Examples: urinary bladder, gallbladder.
Bone scan: Imaging method of the skeleton performed by radiologists to determine the presence of bone metastases.
BPH: Abbreviation for benign prostatic hyperplasia.
Brachytherapy: Radioactive seed implantation therapy. Synonyms: Seed implanatation, interstitial radiation therapy.