{
  "id": 7950,
  "label": "synovial chondromatosis",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0006438",
  "properties": {
    "xrefs": [
      "EFO:1000557",
      "MEDGEN:40275",
      "MESH:D015838",
      "NCIT:C34467",
      "UMLS:C0008476"
    ],
    "synonyms": [
      "Henderson-Jones syndrome",
      "Reichel's syndrome",
      "synovial osteochondromatosis"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      }
    ],
    "definition": "Synovial chondromatosis is a type of non-cancerous tumor that arises in the lining of a joint. The knee is most commonly affected, however it can affect any joint. The tumors begin as small nodules of cartilage. These nodules can separate and become loose within the joint. Some tumors may be no larger than a grain of rice. Synovial chondromatosis most commonly occurs in adults ages 20 to 50. Signs and symptoms may include pain, swelling, a decreased range of motion, and locking of the joint. The exact underlying cause of the condition is unknown. Treatment may involve surgery to remove the tumor. Recurrence of the condition is common."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 4222,
      "label": "musculoskeletal system disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        29379
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:17",
          "EFO:0009676",
          "ICD9:729.99",
          "MEDGEN:6471",
          "MESH:D009140",
          "NCIT:C107377",
          "SCTID:928000",
          "UMLS:C0026857"
        ],
        "synonyms": [
          "disease of musculoskeletal system",
          "disease or disorder of musculoskeletal system",
          "disorder of musculoskeletal system",
          "musculoskeletal disease",
          "musculoskeletal system disease",
          "musculoskeletal system disease or disorder",
          "musculoskeletal system disorder",
          "musculoskeletal disorder"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "A disease involving the musculoskeletal system."
      },
      "child_count": 22,
      "reference_id": "MONDO:0002081"
    },
    {
      "id": 23336,
      "label": "connective and soft tissue neoplasm",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6798
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "MEDGEN:60224",
          "NCIT:C3810",
          "UMLS:C0206765"
        ],
        "synonyms": [
          "connective and soft tissue neoplasm",
          "connective and soft tissue tumor",
          "connective and soft tissue tumour",
          "musculoskeletal and soft tissue neoplasm",
          "musculoskeletal and soft tissue tumor",
          "musculoskeletal and soft tissue tumour",
          "neoplasm of skeletal and soft tissue",
          "neoplasm of soft tissue and bone",
          "neoplasm of soft tissue and skeleton",
          "skeletal and soft tissue neoplasm",
          "skeletal and soft tissue tumor",
          "skeletal and soft tissue tumour",
          "soft tissue and bone neoplasm",
          "soft tissue and bone tumor",
          "soft tissue and bone tumour",
          "tumor of skeletal and soft tissue",
          "tumor of soft tissue and bone",
          "tumor of soft tissue and skeleton",
          "tumour of skeletal and soft tissue",
          "tumour of soft tissue and bone",
          "tumour of soft tissue and skeleton"
        ],
        "definition": "A benign, intermediate, or malignant neoplasm that affects the connective and soft tissue."
      },
      "child_count": 3,
      "reference_id": "MONDO:0044334"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 4222,
      "label": "musculoskeletal system disorder"
    },
    {
      "id": 23336,
      "label": "connective and soft tissue neoplasm"
    }
  ]
}