{
  "id": 3391,
  "label": "fourth cranial nerve palsy",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0001146",
  "properties": {
    "xrefs": [
      "DOID:10869",
      "ICD9:378.53",
      "MEDGEN:75746",
      "SCTID:20610004",
      "UMLS:C0271375",
      "icd11.foundation:120848300"
    ],
    "synonyms": [
      "cranial nerve palsy of trochlear nerve",
      "fourth nerve palsy",
      "fourth or trochlear nerve palsy",
      "trochlear nerve cranial nerve palsy"
    ],
    "categories": [
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ],
    "definition": "A cranial nerve palsy that involves the trochlear nerve."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 1,
  "parents": [
    {
      "id": 4811,
      "label": "cranial nerve palsy",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        5469
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:3817",
          "EFO:0009489",
          "MEDGEN:57717",
          "NCIT:C26941",
          "UMLS:C0151311"
        ],
        "synonyms": [
          "cranial nerve palsy",
          "cranial nerve paralysis",
          "cranial nerve palsies"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "Injury to any of the cranial nerves or their nuclei in the brain resulting in muscle weakness."
      },
      "child_count": 7,
      "reference_id": "MONDO:0002782"
    },
    {
      "id": 8425,
      "label": "trochlear nerve disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        5469,
        5512
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:13864",
          "MEDGEN:888203",
          "MESH:D020432",
          "MedDRA:10074765",
          "NCIT:C78395",
          "UMLS:C4048184"
        ],
        "synonyms": [
          "IVth cranial nerve disorder",
          "IVth nerve disorder",
          "disease of trochlear nerve",
          "disease or disorder of trochlear nerve",
          "disorder of trochlear nerve",
          "trochlear nerve disease",
          "trochlear nerve disease or disorder",
          "trochlear nerve disorder"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "A disease involving the trochlear nerve."
      },
      "child_count": 4,
      "reference_id": "MONDO:0007002"
    }
  ],
  "children": [
    {
      "id": 24774,
      "label": "congenital trochlear nerve palsy",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        3391
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0028047",
          "MEDGEN:1810147",
          "Orphanet:98686",
          "UMLS:C5680340"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "A rare ophthalmic disorder with cranial nerve involvement characterized by dysfunction of the superior oblique muscle with typical eye motility patterns including elevation in adduction, V-pattern related to reduced abduction force in downgaze with unopposed adduction by the inferior rectus muscle, and excyclotorsion. Patients may present with contralateral head tilt to compensate for vertical binocular misalignment and diplopia."
      },
      "child_count": 1,
      "reference_id": "MONDO:0700463"
    }
  ],
  "roots": [
    {
      "id": 4811,
      "label": "cranial nerve palsy"
    },
    {
      "id": 8425,
      "label": "trochlear nerve disorder"
    }
  ]
}