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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Microsfera

Microsphere (MY-kroh-sfeer)
A very tiny, hollow, round particle made from glass, ceramic, plastic, or other materials. Microspheres injected into blood vessels that feed a tumor may kill the tumor by blocking its blood supply. They can also be filled with a substance that may help kill more tumor cells.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.