variable expressivity

{
  "id": "MLC-T-ONC-009168",
  "term": "variable expressivity",
  "field": "Oncology and biomedicine",
  "definitions": [
    "Refers to the difference in the way that signs and symptoms of a genetic condition can show up in individual patients who have that condition. For example, some patients with neurofibromatosis type 1 may have only mild symptoms, such as brown spots and freckling on the skin, and others may have more severe symptoms, such as brain tumors and tumors on the nerves.",
    "Variation in the traits, signs, or symptoms that can occur in individuals with the same condition. When there is variable expressivity, the trait may vary in clinical expression from mild to severe."
  ],
  "references": [
    "NCI Dictionary of Cancer Terms",
    "NCI Dictionary of Genetics Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/variable-expressivity/"
}