{
  "id": 4458,
  "label": "periosteal chondroma",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0002359",
  "properties": {
    "xrefs": [
      "DOID:2601",
      "GARD:0023124",
      "ICDO:9221/0",
      "MEDGEN:87260",
      "NCIT:C4302",
      "UMLS:C0334548"
    ],
    "synonyms": [
      "juxtacortical chondroma",
      "juxtacortical chondroma (morphologic abnormality)",
      "periosteal chondroma"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0003900",
        "name": "connective tissue disorder"
      }
    ],
    "definition": "A benign neoplasm of bone surface composed of hyaline cartilage. It arises beneath the periosteum and is characterized by the presence of chondrocytes, a lobulated growth pattern, and calcification."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 3036,
      "label": "bone benign neoplasm",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        3054,
        18958
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0060094",
          "GARD:0022813",
          "ICD9:213.9",
          "MEDGEN:146337",
          "NCIT:C4880",
          "SCTID:92027006",
          "UMLS:C0684516"
        ],
        "synonyms": [
          "benign bone neoplasm",
          "benign bone tumor",
          "benign bone tumour",
          "benign neoplasm of bone",
          "benign neoplasm of the bone",
          "benign osseous neoplasm",
          "benign osseous tumor",
          "benign osseous tumour",
          "benign tumor of bone",
          "benign tumor of the bone",
          "benign tumour of bone",
          "benign tumour of the bone",
          "bone tissue benign neoplasm"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A neoplasm that arises from the bone or articular cartilage and does not invade adjacent tissues or metastasize to other anatomic sites."
      },
      "child_count": 38,
      "reference_id": "MONDO:0000631"
    },
    {
      "id": 4459,
      "label": "chondroma",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        3040,
        6893,
        20678,
        21426
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:2602",
          "ICDO:9220/0",
          "MEDGEN:181701",
          "MESH:D002812",
          "NCIT:C53459",
          "UMLS:C0936248"
        ],
        "synonyms": [
          "chondroma",
          "chondroma, benign"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A benign well circumscribed neoplasm of hyaline cartilage arising from bone or soft tissue. It is characterized by the presence of chondrocytes."
      },
      "child_count": 12,
      "reference_id": "MONDO:0002360"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 3036,
      "label": "bone benign neoplasm"
    },
    {
      "id": 4459,
      "label": "chondroma"
    }
  ]
}