{
  "url": "https://dantelabs.com/traits/macrodactyly",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "macrodactyly",
    "id": "HP:0004099",
    "name": "Finger overgrowth",
    "label": "Macrodactyly",
    "definition": "Significant increase in the length and girth of most or all of a digit compared to its contralateral digit (if unaffected) or compared to what would be expected for age/body build. The increased girth is accompanied by an increase in the dorso-ventral dimension AND the lateral dimension of the digit.",
    "synonyms": [
      "Megalodactyly"
    ],
    "systems": [
      {
        "slug": "abnormality-of-limbs",
        "name": "Abnormality of limbs",
        "url": "https://dantelabs.com/traits/abnormality-of-limbs"
      },
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-digit-morphology",
        "name": "Abnormality of fingers or toes",
        "url": "https://dantelabs.com/traits/abnormal-digit-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "pik3ca",
        "symbol": "PIK3CA",
        "hgnc": "HGNC:8975",
        "name": "phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha",
        "frequency": "obligate",
        "diseases": 6,
        "url": "https://dantelabs.com/genes/pik3ca"
      },
      {
        "slug": "aip",
        "symbol": "AIP",
        "hgnc": "HGNC:358",
        "name": "AHR interacting HSP90 co-chaperone",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aip"
      },
      {
        "slug": "akt1",
        "symbol": "AKT1",
        "hgnc": "HGNC:391",
        "name": "AKT serine/threonine kinase 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/akt1"
      },
      {
        "slug": "gpr101",
        "symbol": "GPR101",
        "hgnc": "HGNC:14963",
        "name": "G protein-coupled receptor 101",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gpr101"
      }
    ]
  }
}