{
  "id": 19751,
  "label": "cystic malformation of the posterior fossa",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0020134",
  "properties": {
    "xrefs": [
      "GARD:0025153",
      "ICD9:742.4",
      "MEDGEN:783289",
      "Orphanet:98520",
      "SCTID:35111000119109",
      "UMLS:C3662134"
    ],
    "categories": [
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ]
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 4,
  "parents": [
    {
      "id": 19709,
      "label": "central nervous system malformation",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6799,
        19507
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0019394",
          "ICD10CM:Q00-Q07",
          "MEDGEN:374250",
          "MESH:D009421",
          "NANDO:2200118",
          "Orphanet:98044",
          "UMLS:C1839543"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ]
      },
      "child_count": 108,
      "reference_id": "MONDO:0020022"
    }
  ],
  "children": [
    {
      "id": 10321,
      "label": "Dandy-Walker syndrome",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4515,
        19751
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:2785",
          "EFO:1000890",
          "GARD:0006242",
          "MEDGEN:4150",
          "MESH:D003616",
          "MedDRA:10048411",
          "NANDO:2200821",
          "NCIT:C75012",
          "NORD:1032",
          "OMIM:220200",
          "Orphanet:217",
          "SCTID:14447001",
          "UMLS:C0010964",
          "icd11.foundation:993088960"
        ],
        "synonyms": [
          "Dandy Walker Malformation",
          "Dandy-Walker syndrome",
          "Dandy-Walker syndrome, Isolated cases",
          "DW complex",
          "DWS",
          "Dandy-Walker complex",
          "Dandy-Walker malformation",
          "Dandy-Walker syndrome or malformation (type of DW complex)",
          "Dandy-Walker variant (type of DW complex)",
          "isolated Dandy-Walker malformation",
          "mega cisterna magna (type of DW complex)"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "Dandy-Walker malformation (DWM) is the association of three signs: hydrocephalus, partial or complete absence of the cerebellar vermis, and posterior fossa cyst contiguous with the fourth ventricle, presenting early in life with hydrocephalus, bulging occiput and posterior fossa signs such as cranial nerve palsies, nystagmus and ataxia."
      },
      "child_count": 6,
      "reference_id": "MONDO:0009072"
    },
    {
      "id": 17481,
      "label": "retrocerebellar cyst",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        19751
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0025087",
          "HP:0006951",
          "MEDGEN:335172",
          "Orphanet:269200",
          "UMLS:C1845370"
        ],
        "synonyms": [
          "Retrocerebellar arachnoid cyst",
          "Retrocerebellar cyst",
          "retrocerebellar cyst (disease)"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0017106"
    },
    {
      "id": 19670,
      "label": "mega-cisterna magna",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        19751
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0019355",
          "MEDGEN:344031",
          "Orphanet:97252",
          "UMLS:C1853377"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0019953"
    },
    {
      "id": 19813,
      "label": "Blake pouch cyst",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        19751
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0019603",
          "MEDGEN:783279",
          "Orphanet:98922",
          "UMLS:C3662124"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "Blake pouch cyst is a non-syndromic, usually benign, cystic malformation of the posterior fossa characterized by a midline outpouching of the superior medullary velum into the cisterna magna that results from failure of the rudimental fourth ventricular tela choroidea to regress during embryogenesis. Patients can be asymptomatic or present in childhood or adulthood with clinical manifestations of hydrocephalus, such as headache, hypotonia, vertigo, syncope, vomiting, blurred or double vision, nystagmus, papilledema, and delayed gait development."
      },
      "child_count": 0,
      "reference_id": "MONDO:0020351"
    }
  ],
  "roots": [
    {
      "id": 19709,
      "label": "central nervous system malformation"
    }
  ]
}