{
  "url": "https://dantelabs.com/traits/finger-hyperphalangy",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "finger-hyperphalangy",
    "id": "HP:0030367",
    "name": "Finger hyperphalangy",
    "definition": "Hyperphalangy is a digit morphology in which increased numbers of phalanges are arranged linearly within a digit. That is, there is an accessory phalanx that is arranged linearly with the other phalanges.",
    "synonyms": [],
    "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-finger-phalanx-morphology",
        "name": "Abnormality of the finger bones",
        "url": "https://dantelabs.com/traits/abnormal-finger-phalanx-morphology"
      }
    ],
    "narrower": [
      {
        "slug": "hyperphalangy-of-the-2nd-finger",
        "name": "Hyperphalangy of the 2nd finger",
        "genes": 1,
        "url": "https://dantelabs.com/traits/hyperphalangy-of-the-2nd-finger"
      },
      {
        "slug": "hyperphalangy-of-the-4th-finger",
        "name": "Hyperphalangy of the 4th finger",
        "genes": 1,
        "url": "https://dantelabs.com/traits/hyperphalangy-of-the-4th-finger"
      }
    ],
    "genes": [
      {
        "slug": "erf",
        "symbol": "ERF",
        "hgnc": "HGNC:3444",
        "name": "ETS2 repressor factor",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/erf"
      }
    ]
  }
}