interstitial implant


in·ter·sti·ti·al im·plant

(in'tĕr-stish'ăl im'plant) Introduction of a radioactive mechanical device into a tumor directly so as to lessen the likelihood of spread of radiation into unaffected tissue.

interstitial implant

An implant consisting of an applicator containing a radioactive source directly into a tumor to deliver a high radiation dose while sparing the surrounding tissues.See also: implant