oligometastasis

Noun

 * 1)  A state of limited metastasis, especially of cancer, with several (but not many) metastatic sites.
 * 2)  Any of the several metastatic tumors/sites in such a state.
 * 1)  Any of the several metastatic tumors/sites in such a state.

Usage notes
The precise meanings of the term, including variations thereof, have been reviewed in the medical literature.