{
  "url": "https://dantelabs.com/traits/biliary-hyperplasia",
  "trait": {
    "bundleId": "2026.10.16-c6eea6bf",
    "release": "2026-09-01",
    "slug": "biliary-hyperplasia",
    "id": "HP:0006560",
    "name": "Biliary hyperplasia",
    "definition": "Hyperplasia of the biliary tree, as manifested by increased size of bile ducts, dilated lumen, and histologically by an increased number of epithelial cells or hyperplasia.",
    "synonyms": [
      "Bile duct hyperplasia"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-digestive-system",
        "name": "Abnormality of the digestive system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-digestive-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-biliary-tract-morphology",
        "name": "Abnormal biliary tract morphology",
        "url": "https://dantelabs.com/traits/abnormal-biliary-tract-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "dzip1l",
        "symbol": "DZIP1L",
        "hgnc": "HGNC:26551",
        "name": "DAZ interacting zinc finger protein 1 like",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dzip1l"
      },
      {
        "slug": "pkhd1",
        "symbol": "PKHD1",
        "hgnc": "HGNC:9016",
        "name": "PKHD1 ciliary IPT domain containing fibrocystin/polyductin",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pkhd1"
      },
      {
        "slug": "focad",
        "symbol": "FOCAD",
        "hgnc": "HGNC:23377",
        "name": "focadhesin",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/focad"
      }
    ]
  }
}