{
  "url": "https://dantelabs.com/traits/abnormal-periosteum-morphology",
  "trait": {
    "bundleId": "2026.10.19-9814e911",
    "release": "2026-09-01",
    "slug": "abnormal-periosteum-morphology",
    "id": "HP:0030313",
    "name": "Abnormal periosteum morphology",
    "definition": "An anomalous structure of the periosteum, i.e., of the membrane that covers the outer surface of bones.",
    "synonyms": [],
    "systems": [
      {
        "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-skeletal-morphology",
        "name": "Abnormally shaped skeletal",
        "url": "https://dantelabs.com/traits/abnormal-skeletal-morphology"
      }
    ],
    "narrower": [
      {
        "slug": "subperiosteal-bone-formation",
        "name": "Subperiosteal bone formation",
        "genes": 4,
        "url": "https://dantelabs.com/traits/subperiosteal-bone-formation"
      },
      {
        "slug": "periosteal-thickening-of-long-tubular-bones",
        "name": "Periosteal thickening of long tubular bones",
        "genes": 2,
        "url": "https://dantelabs.com/traits/periosteal-thickening-of-long-tubular-bones"
      },
      {
        "slug": "periostosis",
        "name": "Periostosis",
        "genes": 2,
        "url": "https://dantelabs.com/traits/periostosis"
      },
      {
        "slug": "metacarpal-periosteal-thickening",
        "name": "Metacarpal periosteal thickening",
        "genes": 1,
        "url": "https://dantelabs.com/traits/metacarpal-periosteal-thickening"
      },
      {
        "slug": "periostitis",
        "name": "Periostitis",
        "genes": 1,
        "url": "https://dantelabs.com/traits/periostitis"
      }
    ],
    "genes": [
      {
        "slug": "fgfr2",
        "symbol": "FGFR2",
        "hgnc": "HGNC:3689",
        "name": "fibroblast growth factor receptor 2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fgfr2"
      }
    ]
  }
}