{
  "url": "https://dantelabs.com/traits/thyroid-c-cell-hyperplasia",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "thyroid-c-cell-hyperplasia",
    "id": "HP:0011781",
    "name": "Thyroid C cell hyperplasia",
    "definition": "An abnormal growth of parafollicular (C-cells) cells.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-endocrine-system",
        "name": "Abnormality of the endocrine system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-endocrine-system"
      }
    ],
    "broader": [
      {
        "slug": "thyroid-hyperplasia",
        "name": "Large thyroid",
        "url": "https://dantelabs.com/traits/thyroid-hyperplasia"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "ndufb11",
        "symbol": "NDUFB11",
        "hgnc": "HGNC:20372",
        "name": "NADH:ubiquinone oxidoreductase subunit B11",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ndufb11"
      },
      {
        "slug": "ret",
        "symbol": "RET",
        "hgnc": "HGNC:9967",
        "name": "ret proto-oncogene",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ret"
      }
    ]
  }
}