{
  "id": 12350,
  "label": "ossification of the posterior longitudinal ligament of the spine",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0011230",
  "properties": {
    "xrefs": [
      "DOID:0060887",
      "EFO:0005895",
      "GARD:0027799",
      "MEDGEN:355447",
      "MESH:C537143",
      "NANDO:1200371",
      "NCIT:C84975",
      "OMIM:602475",
      "SCTID:90448008",
      "UMLS:C1865343"
    ],
    "synonyms": [
      "OPLL",
      "ossification of Posterior longitudinal ligament",
      "ossification of the POSTERIOR longitudinal ligament of spine"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0003900",
        "name": "connective tissue disorder"
      }
    ],
    "definition": "A disorder characterized by benign depositions of calcium in the posterior longitudinal ligament. Signs and symptoms result from the compression of nerve roots and include motor and sensory disturbances in the lower and upper extremities, and pain in the neck and arms."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "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": 21247,
      "label": "hereditary disorder of connective tissue",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        5714,
        5762
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "MEDGEN:473110",
          "NCIT:C97075",
          "SCTID:363045008",
          "UMLS:C0410787"
        ],
        "synonyms": [
          "Mendelian connective tissue disorder",
          "connective tissue hereditary disorder",
          "hereditary connective tissue disorder",
          "Hereditary Connective Tissue Disorder",
          "Inherited disorder of connective tissue",
          "inherited disorder of connective tissue"
        ],
        "categories": [
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "An inherited genetic disorder that affects the connective tissues. Representative examples include Ehlers-Danlos syndrome and Marfan syndrome."
      },
      "child_count": 176,
      "reference_id": "MONDO:0023603"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 6893,
      "label": "skeletal system disorder"
    },
    {
      "id": 21247,
      "label": "hereditary disorder of connective tissue"
    }
  ]
}