Mast cell leukemia

{
  "id": "MLC-T-ONC-005149",
  "term": "Mast cell leukemia",
  "field": "Oncology and biomedicine",
  "definition": "A very rare, aggressive (fast-growing) type of systemic mastocytosis in which too many immature mast cells (a type of white blood cell) are found in the bone marrow and blood. It may develop in patients who have a buildup of mast cells caused by a condition called aggressive systemic mastocytosis. Mast cell leukemia is hard to treat and has a poor prognosis (outcome).",
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/mast-cell-leukemia/"
}