{
  "id": 5183,
  "label": "optic nerve glioma",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0003235",
  "properties": {
    "xrefs": [
      "DOID:4992",
      "EFO:0009254",
      "GARD:0023417",
      "ICD9:237.9",
      "MEDGEN:138056",
      "MESH:D020339",
      "NCIT:C4537",
      "SCTID:254976006",
      "UMLS:C0346326"
    ],
    "synonyms": [
      "cranial nerve II glioma",
      "glioma of cranial nerve II",
      "glioma of optic nerve",
      "glioma of the optic nerve",
      "optic nerve glioma"
    ],
    "categories": [
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      },
      {
        "ref": "MONDO:0024458",
        "name": "disorder of visual system"
      }
    ],
    "definition": "A glioma that affects the optic nerve. This condition can be seen in association with neurofibromatosis 1. It is most commonly seen in the pediatric age group."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 2,
  "parents": [
    {
      "id": 4691,
      "label": "optic nerve neoplasm",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4268,
        4684,
        7694
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:3419",
          "EFO:1001073",
          "ICD9:239.7",
          "MEDGEN:101181",
          "MESH:D019574",
          "NCIT:C4801",
          "SCTID:395505000",
          "UMLS:C0524802"
        ],
        "synonyms": [
          "cranial nerve II neoplasm",
          "cranial nerve II neoplasm (disease)",
          "cranial nerve II neoplasms",
          "cranial nerve II tumor",
          "cranial nerve II tumour",
          "neoplasm of cranial nerve II",
          "neoplasm of optic nerve",
          "neoplasm of second cranial nerve",
          "neoplasm of the optic nerve",
          "neoplasm of the second cranial nerve",
          "neoplasms, optic nerve",
          "neoplasms, second cranial nerve",
          "optic nerve neoplasm",
          "optic nerve neoplasms",
          "optic nerve tumor",
          "optic nerve tumour",
          "second cranial nerve neoplasm",
          "second cranial nerve neoplasms",
          "second cranial nerve tumor",
          "second cranial nerve tumour",
          "tumor of cranial nerve II",
          "tumor of optic nerve",
          "tumor of second cranial nerve",
          "tumor of the optic nerve",
          "tumor of the second cranial nerve",
          "tumour of cranial nerve II",
          "tumour of second cranial nerve",
          "tumour of the optic nerve",
          "tumour of the second cranial nerve"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "Benign and malignant neoplasms which arise from or metastasize to the optic or second cranial nerve which extends from the optic disk of the eye and joins the optic chiasm. Clinical features may include visual loss, proptosis, and local pain. The majority of optic nerve tumors or optic gliomas."
      },
      "child_count": 9,
      "reference_id": "MONDO:0002640"
    },
    {
      "id": 16766,
      "label": "optic pathway glioma",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4014,
        17197,
        20287,
        20429
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0004107",
          "MEDGEN:162950",
          "NCIT:C8567",
          "Orphanet:2086",
          "UMLS:C0796418",
          "icd11.foundation:1000103370"
        ],
        "synonyms": [
          "glioma of optic tract",
          "glioma of the optic tract",
          "glioma of the visual pathway",
          "glioma of visual pathway",
          "optic pathway glioma",
          "optic tract glioma",
          "visual pathway glioma"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "Optic pathway glioma (OPG) is a benign tumor that develop along the optic nerve (chiasm, tracts, and radiations) characterized by impairment or loss of vision and may be accompanied by diencephalic symptoms such as reduced growth and alteration in sleeping patterns. OPG are often linked to neurofibromatosis type 1 (NF1)."
      },
      "child_count": 8,
      "reference_id": "MONDO:0016167"
    }
  ],
  "children": [
    {
      "id": 5182,
      "label": "optic nerve astrocytoma",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        4519,
        5183,
        21557
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:4991",
          "GARD:0023416",
          "MEDGEN:235405",
          "NCIT:C6769",
          "UMLS:C1335114"
        ],
        "synonyms": [
          "astrocytic tumour of optic nerve",
          "astrocytoma (excluding glioblastoma) of cranial nerve II",
          "astrocytoma of optic nerve",
          "astrocytoma of the optic nerve",
          "cranial nerve II astrocytoma (excluding glioblastoma)",
          "optic nerve astrocytoma",
          "optic tract astrocytoma",
          "optic tract astrocytoma (excluding glioblastoma)"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "A astrocytoma (excluding glioblastoma) that involves the cranial nerve II."
      },
      "child_count": 0,
      "reference_id": "MONDO:0003234"
    },
    {
      "id": 5791,
      "label": "childhood optic nerve glioma",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        5183,
        20320
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:6576",
          "GARD:0009309",
          "MEDGEN:124487",
          "NCIT:C7535",
          "UMLS:C0278653"
        ],
        "synonyms": [
          "visual pathway glioma",
          "childhood optic tract glioma",
          "childhood visual pathway glioma",
          "glioma of childhood visual pathway",
          "glioma of paediatric visual pathway",
          "glioma of pediatric visual pathway",
          "glioma of the childhood visual pathway",
          "glioma of the paediatric visual pathway",
          "glioma of the pediatric visual pathway",
          "optic nerve glioma of childhood",
          "paediatric optic nerve glioma",
          "paediatric optic tract glioma",
          "paediatric visual pathway glioma",
          "pediatric optic nerve glioma",
          "pediatric optic tract glioma",
          "pediatric visual pathway glioma",
          "visual pathway and hypothalamic glioma, childhood"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "A glioma affecting the optic tract and occurring in childhood."
      },
      "child_count": 0,
      "reference_id": "MONDO:0003932"
    }
  ],
  "roots": [
    {
      "id": 4691,
      "label": "optic nerve neoplasm"
    },
    {
      "id": 16766,
      "label": "optic pathway glioma"
    }
  ]
}