{
  "id": 4304,
  "label": "exostosis",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0002181",
  "properties": {
    "xrefs": [
      "DOID:203",
      "ICD9:726.91",
      "MEDGEN:257035",
      "NCIT:C3029",
      "SCTID:235231000119100",
      "SCTID:416189003",
      "UMLS:C1442903"
    ],
    "synonyms": [
      "bone osteophyte",
      "exostosis",
      "orbital exostosis",
      "swimmer's exostosis"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      }
    ],
    "definition": "Non-neoplastic overgrowth of bone."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 3,
  "parents": [
    {
      "id": 4308,
      "label": "hyperostosis",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        3151
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:205",
          "ICD10CM:M89.3",
          "ICD9:733.99",
          "MEDGEN:9366",
          "MESH:D015576",
          "NCIT:C34712",
          "SCTID:203514008",
          "UMLS:C0020492"
        ],
        "synonyms": [
          "bone hypertrophy",
          "hypertrophy of bone",
          "hypertrophy of bone (morphologic abnormality)"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "Excessive thickening of bone."
      },
      "child_count": 9,
      "reference_id": "MONDO:0002185"
    }
  ],
  "children": [
    {
      "id": 4331,
      "label": "heel spur",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        4304
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:210",
          "ICD10CM:M77.3",
          "ICD9:726.73",
          "MEDGEN:57853",
          "MESH:D036982",
          "SCTID:55260003",
          "UMLS:C0158322"
        ],
        "synonyms": [
          "calcaneus exostosis",
          "calcaneal spur"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "A bony outgrowth on the lower surface of the calcaneus. Though often presenting along with plantar fasciitis (fasciitis, plantar), they are not considered causally related."
      },
      "child_count": 0,
      "reference_id": "MONDO:0002209"
    },
    {
      "id": 7164,
      "label": "hereditary multiple osteochondromas",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4304,
        16218,
        18958,
        21247
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:206",
          "GARD:0007035",
          "MEDGEN:4612",
          "MESH:D005097",
          "NANDO:2200049",
          "NANDO:2201014",
          "NANDO:2201015",
          "NCIT:C5183",
          "NORD:1233",
          "OMIMPS:133700",
          "Orphanet:321",
          "SCTID:254044004",
          "SCTID:716742001",
          "UMLS:C0015306",
          "icd11.foundation:146330302",
          "icd11.foundation:1578364807"
        ],
        "synonyms": [
          "Bessel-Hagen disease",
          "exostoses, multiple",
          "multiple cartilaginous exostoses",
          "osteochondromatosis syndrome",
          "osteochondromatosis syndrome (disorder) [ambiguous]",
          "hereditary multiple exostoses 1",
          "hereditary multiple exostoses 2",
          "hereditary multiple exostoses 3",
          "EXT",
          "HMO",
          "hereditary multiple exostoses",
          "hereditary multiple exostosis",
          "multiple exostoses"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0002254",
            "name": "syndromic disease"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A bone neoplasm characterized by development of two or more cartilage capped bony outgrowths (osteochondromas) of the long bones."
      },
      "child_count": 12,
      "reference_id": "MONDO:0005508"
    },
    {
      "id": 20113,
      "label": "Heberden's node",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        4304
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "MEDGEN:6761",
          "NCIT:C34671",
          "SCTID:239869009",
          "UMLS:C0018862"
        ],
        "synonyms": [
          "Heberden's node",
          "tuberculum arthriticum"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "Osteophytes that most commonly develop on the distal interphalangeal joints, often in the setting of osteoarthritis."
      },
      "child_count": 0,
      "reference_id": "MONDO:0020706"
    }
  ],
  "roots": [
    {
      "id": 4308,
      "label": "hyperostosis"
    }
  ]
}