interstitial therapy

in·ter·sti·tial ther·a·py

radiation therapy by means of radioactive seeds or needles implanted directly into the tissues to be irradiated.
Farlex Partner Medical Dictionary © Farlex 2012

interstitial therapy

Brachytherapy, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

in·ter·sti·tial ther·a·py

(in'tĕr-stish'ăl thār'ă-pē)
Radiation therapy by means of radioactive seeds or needles implanted directly into the tissues to be irradiated.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012