microsphere

{
  "id": "MLC-T-ONC-005370",
  "term": "microsphere",
  "field": "Oncology and biomedicine",
  "definition": "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.",
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/microsphere/"
}