{
  "id": 4459,
  "label": "chondroma",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0002360",
  "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."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 3,
  "parents": [
    {
      "id": 3040,
      "label": "musculoskeletal system benign neoplasm",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4222,
        6887
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0060099",
          "MEDGEN:1709701",
          "NCIT:C166356",
          "UMLS:C5237920"
        ],
        "synonyms": [
          "musculoskeletal system benign neoplasm"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "A benign neoplasm that involves the musculoskeletal system."
      },
      "child_count": 16,
      "reference_id": "MONDO:0000636"
    },
    {
      "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"
    },
    {
      "id": 21426,
      "label": "benign chondrogenic neoplasm",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6887,
        21425
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "MEDGEN:208867",
          "NCIT:C8592",
          "SCTID:722690001",
          "UMLS:C0852519"
        ],
        "synonyms": [
          "benign cartilaginous neoplasm",
          "benign cartilaginous tumor",
          "benign cartilaginous tumour",
          "benign chondrogenic neoplasm",
          "benign chondrogenic tumor",
          "benign chondrogenic tumour",
          "benign neoplasm of cartilage",
          "benign neoplasm of the cartilage",
          "benign tumor of cartilage",
          "benign tumor of the cartilage",
          "benign tumour of cartilage",
          "benign tumour of the cartilage",
          "chondrogenic neoplasm, benign"
        ],
        "definition": "A non-metastasizing cartilaginous matrix-producing neoplasm characterized by the presence of neoplastic chondrocytes. Representative examples include osteochondroma and chondroma."
      },
      "child_count": 6,
      "reference_id": "MONDO:0024470"
    }
  ],
  "children": [
    {
      "id": 2967,
      "label": "phalanx chondroma",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        3036,
        4459
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0050898",
          "GARD:0022785"
        ],
        "synonyms": [
          "phalanx chondroma"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A chondroma that involves the phalanx."
      },
      "child_count": 0,
      "reference_id": "MONDO:0000516"
    },
    {
      "id": 4458,
      "label": "periosteal chondroma",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        3036,
        4459
      ],
      "type_id": 0,
      "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."
      },
      "child_count": 0,
      "reference_id": "MONDO:0002359"
    },
    {
      "id": 7940,
      "label": "soft tissue chondroma",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4459,
        23337
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:3814",
          "EFO:1000540",
          "MEDGEN:266157",
          "NCIT:C9482",
          "SCTID:404078000",
          "UMLS:C1275277"
        ],
        "synonyms": [
          "chondroma of soft parts",
          "extraskeletal chondroma",
          "extraskeletal osteochondroma",
          "soft tissue chondroma"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A benign neoplasm arising from the extraskeletal soft tissues near tendons and joints. It is a well circumscribed tumor characterized by the presence of chondrocytes, a lobulated hyaline cartilage growth pattern, and in some cases calcification."
      },
      "child_count": 2,
      "reference_id": "MONDO:0006423"
    }
  ],
  "roots": [
    {
      "id": 3040,
      "label": "musculoskeletal system benign neoplasm"
    },
    {
      "id": 6893,
      "label": "skeletal system disorder"
    },
    {
      "id": 20678,
      "label": "connective tissue neoplasm"
    },
    {
      "id": 21426,
      "label": "benign chondrogenic neoplasm"
    }
  ]
}