{
  "id": 3042,
  "label": "cartilage cancer",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0000639",
  "properties": {
    "xrefs": [
      "DOID:0060102",
      "GARD:0006004",
      "MEDGEN:1843449",
      "UMLS:C4290064"
    ],
    "synonyms": [
      "cancer of cartilage tissue",
      "cartilage tissue cancer",
      "cartilaginous cancer",
      "malignant cartilage tissue neoplasm",
      "malignant neoplasm of cartilage tissue"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0003900",
        "name": "connective tissue disorder"
      }
    ],
    "definition": "A cancer involving a cartilage tissue."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 3041,
      "label": "musculoskeletal system cancer",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4222,
        6733
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0060100",
          "MEDGEN:1714562",
          "NCIT:C166357",
          "UMLS:C0036210"
        ],
        "synonyms": [
          "cancer of musculoskeletal system",
          "malignant musculoskeletal system neoplasm",
          "malignant neoplasm of musculoskeletal system",
          "musculoskeletal system cancer",
          "skeletal system cancer"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "A malignant neoplasm involving the musculoskeletal system"
      },
      "child_count": 22,
      "reference_id": "MONDO:0000637"
    },
    {
      "id": 6893,
      "label": "skeletal system disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4222
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "EFO:0002461",
          "MEDGEN:538042",
          "SCTID:88230002",
          "UMLS:C0263661"
        ],
        "synonyms": [
          "disease of skeletal system",
          "disease or disorder of skeletal system",
          "disorder of skeletal system",
          "skeletal system disease",
          "skeletal system disease or disorder",
          "disease of bone and/or joint",
          "osteoarthropathy"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "A disease involving the skeletal system."
      },
      "child_count": 48,
      "reference_id": "MONDO:0005172"
    },
    {
      "id": 20678,
      "label": "connective tissue neoplasm",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        5762,
        6798
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "ICD9:239.2",
          "MEDGEN:45035",
          "MESH:D009372",
          "SCTID:126598008",
          "UMLS:C0027656"
        ],
        "synonyms": [
          "connective tissue neoplasm",
          "connective tissue neoplasm (disease)",
          "connective tissue tumor",
          "connective tissue tumour",
          "neoplasm of connective tissue",
          "neoplasm of connective tissues",
          "tumor of connective tissue",
          "tumour of connective tissue",
          "connective tissue neoplasms",
          "neoplasm, connective tissue"
        ],
        "categories": [
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "Neoplasms composed of connective tissue, including elastic, mucous, reticular, osseous, and cartilaginous tissue. The concept does not refer to neoplasms located in connective tissue."
      },
      "child_count": 26,
      "reference_id": "MONDO:0021581"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 3041,
      "label": "musculoskeletal system cancer"
    },
    {
      "id": 6893,
      "label": "skeletal system disorder"
    },
    {
      "id": 20678,
      "label": "connective tissue neoplasm"
    }
  ]
}