{
  "id": 8332,
  "label": "patellofemoral pain syndrome",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0006894",
  "properties": {
    "xrefs": [
      "DOID:14284",
      "EFO:1001092",
      "MEDGEN:164080",
      "MESH:D046788",
      "MedDRA:10049143",
      "SCTID:430725003",
      "UMLS:C0877149"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      }
    ],
    "definition": "A syndrome characterized by retropatellar or peripatellar pain resulting from physical and biochemical changes in the patellofemoral joint. The pain is most prominent when ascending or descending stairs, squatting, or sitting with flexed knees. There is a lack of consensus on the etiology and treatment. The syndrome is often confused with (or accompanied by) chondromalacia patellae, the latter describing a pathological condition of the cartilage and not a syndrome."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 8264,
      "label": "arthropathy",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6893
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:381",
          "EFO:1000999",
          "ICD9:711",
          "ICD9:716.80",
          "ICD9:716.88",
          "ICD9:716.9",
          "ICD9:716.90",
          "ICD9:716.98",
          "ICD9:719.80",
          "ICD9:719.88",
          "ICD9:719.89",
          "ICD9:719.9",
          "ICD9:719.90",
          "ICD9:719.98",
          "MEDGEN:7190",
          "MESH:D007592",
          "MedDRA:10003285",
          "NCIT:C35760",
          "SCTID:399269003",
          "UMLS:C0022408"
        ],
        "synonyms": [
          "Joint disorder",
          "arthropathy",
          "disease of skeletal joint",
          "disease or disorder of skeletal joint",
          "disorder of skeletal joint",
          "disorder, Joint",
          "skeletal joint disease",
          "skeletal joint disease or disorder",
          "Joint ankylosis of the ankle and foot",
          "Joint ankylosis of the forearm",
          "Joint ankylosis of the hand",
          "Joint ankylosis of the lower leg",
          "Joint ankylosis of the pelvic region and thigh",
          "Joint ankylosis of the shoulder region",
          "Joint ankylosis of the upper arm",
          "ankylosis of ankle and foot joint",
          "ankylosis of forearm joint",
          "ankylosis of hand joint",
          "ankylosis of joint of multiple sites",
          "ankylosis of joint of pelvic region and thigh",
          "ankylosis of joint of shoulder region",
          "ankylosis of lower leg joint",
          "ankylosis of multiple joints",
          "ankylosis of upper arm joint",
          "infectious arthropathy",
          "arthrosis",
          "disorder of joint",
          "joint disease",
          "joint disorder"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          }
        ],
        "definition": "Any disorder of the joints."
      },
      "child_count": 24,
      "reference_id": "MONDO:0006816"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 8264,
      "label": "arthropathy"
    }
  ]
}