{
  "id": 18498,
  "label": "polyarticular juvenile idiopathic arthritis",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0018456",
  "properties": {
    "xrefs": [
      "EFO:0009730",
      "GARD:0021729",
      "MEDGEN:1622195",
      "Orphanet:404580",
      "SCTID:16044751000119106",
      "UMLS:C4521004"
    ],
    "synonyms": [
      "juvenile polyarthritis",
      "juvenile polyarticular arthritis",
      "polyarticular JIA"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0003900",
        "name": "connective tissue disorder"
      }
    ]
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 2,
  "parents": [
    {
      "id": 12534,
      "label": "juvenile idiopathic arthritis",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        7203,
        7223,
        24405
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:676",
          "EFO:0002609",
          "GARD:0018677",
          "ICD9:714.3",
          "ICD9:714.31",
          "ICD9:714.33",
          "MEDGEN:760659",
          "MESH:D001171",
          "MedDRA:10059177",
          "NANDO:1200469",
          "NANDO:2200415",
          "NCIT:C114357",
          "NORD:808",
          "OMIM:604302",
          "Orphanet:92",
          "SCTID:410502007",
          "UMLS:C3495559",
          "icd11.foundation:1322678686"
        ],
        "synonyms": [
          "Arthritis, Juvenile Rheumatoid",
          "JIA",
          "Juvenile idiopathic arthritis",
          "juvenile idiopathic arthritis",
          "juvenile rheumatoid arthritis",
          "rheumatoid arthritis, systemic juvenile, susceptibility to",
          "acute juvenile rheumatoid arthritis",
          "monarticular juvenile rheumatoid arthritis",
          "pauciarticular juvenile arthritis",
          "pauciarticular onset juvenile chronic arthritis",
          "systemic juvenile rheumatoid arthritis",
          "juvenile chronic arthritis",
          "juvenile chronic polyarthritis",
          "rheumatoid arthritis, systemic juvenile"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "Juvenile idiopathic arthritis (JIA) is the term used to describe a group of inflammatory articular disorders of unknown cause that begin before the age of 16 and last over 6 weeks. The term juvenile idiopathic arthritis was chosen to signify the absence of any known mechanism underlying the disorder and to highlight the necessity of excluding other types of arthritis occurring in well defined diseases (in particular arthritis occurring in association with infectious, inflammatory and haematooncologic diseases)."
      },
      "child_count": 18,
      "reference_id": "MONDO:0011429"
    }
  ],
  "children": [
    {
      "id": 19259,
      "label": "rheumatoid factor-negative juvenile idiopathic arthritis",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        18498
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "EFO:1002020",
          "GARD:0003931",
          "MEDGEN:855549",
          "Orphanet:85408",
          "UMLS:C3890205"
        ],
        "synonyms": [
          "juvenile rheumatoid factor-negative polyarthritis",
          "polyarthritis without rheumatoid factor",
          "rheumatoid factor-negative JIA"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "Rheumatoid factor-negative polyarthritis is a term used to describe a group of poorly defined heterogenous conditions that incorporates forms of rheumatoid factor-negative polyarthritis and forms of oligoarticular arthritis that become extensive in less than 6 months after onset."
      },
      "child_count": 2,
      "reference_id": "MONDO:0019432"
    },
    {
      "id": 19262,
      "label": "rheumatoid factor-positive polyarticular juvenile idiopathic arthritis",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        18498
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "EFO:0009731",
          "GARD:0019064",
          "MEDGEN:855737",
          "NANDO:2201058",
          "NCIT:C119034",
          "Orphanet:85435",
          "UMLS:C3890733"
        ],
        "synonyms": [
          "juvenile idiopathic rheumatoid factor-positive polyarthritis",
          "polyarthritis with rheumatoid factor",
          "polyarticular JIA, RF+",
          "polyarticular juvenile idiopathic arthritis, RF+",
          "polyarticular juvenile idiopathic arthritis, rheumatoid Factor Positive",
          "rheumatoid factor-positive polyarticular JIA"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A category of juvenile idiopathic arthritis defined by the presence of arthritis affecting five or more separate joints during the first six months of disease, with positive serologic testing for rheumatoid factor."
      },
      "child_count": 0,
      "reference_id": "MONDO:0019435"
    }
  ],
  "roots": [
    {
      "id": 12534,
      "label": "juvenile idiopathic arthritis"
    }
  ]
}