9p21

{
  "id": "MLC-T-ONC-000085",
  "term": "9p21",
  "field": "Oncology and biomedicine",
  "definition": "A specific part of chromosome 9 called p21, which has a gene that may be involved in stopping tumor cell growth. In some types of cancer cells, including bladder cancer cells, this small part of chromosome 9 may be missing. This may cause cancer cell growth. Checking for 9p21 may help diagnose cancer or find out if cancer has come back. 9p21 is a type of tumor marker.",
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/9p21/"
}