{
  "id": 16108,
  "label": "vein of Galen aneurysm",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0015196",
  "properties": {
    "xrefs": [
      "GARD:0005467",
      "MEDGEN:140912",
      "MESH:C536535",
      "NCIT:C98642",
      "Orphanet:1053",
      "SCTID:253194008",
      "UMLS:C0431420",
      "icd11.foundation:1884295064"
    ],
    "synonyms": [
      "vein of Galen arteriovenous malformations",
      "Galen vein aneurysm",
      "Galenic arteriovenous malformation",
      "VGAM",
      "ectasia or varix of the vein of Galen",
      "vein of Galen aneurysm malformation"
    ],
    "categories": [
      {
        "ref": "MONDO:0004995",
        "name": "cardiovascular disorder"
      },
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ],
    "definition": "Vein of Galen aneurysm is a rare formof arteriovenous malformation in which the embryonic precursor to the vein of Galen, a vein at the base of the brain, dilates causing too much blood to rush to the heart. This can lead to rapid heart failure. Other features may include increased head circumference resulting from hydrocephalus, unusually prominent veins on the face and scalp, developmental delay, persistent headache, and other neurological findings. Vein of Galen aneurysm is often recognized on an ultrasound late in pregnancy. In other cases, it is diagnosed after birth. Although the exact cause remains unknown, this condition appears to result from a defect in early fetal development. Treatment is aimed at decreasing the blood flow through the malformation while maximizing the blood supply to the brain. Minimally invasive surgical techniques are preferred, such as endovascular embolization."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 3493,
      "label": "arteriovenous hemangioma/malformation",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        7994
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "CSP:0571-2717",
          "DOID:11294",
          "HP:0100026",
          "ICDO:9123/0",
          "MEDGEN:137780",
          "MESH:D001165",
          "NCIT:C2882",
          "SCTID:233982006",
          "UMLS:C0334533"
        ],
        "synonyms": [
          "arteriovenous angioma",
          "arteriovenous hemangioma",
          "arteriovenous hemangioma/malformation",
          "racemose aneurysm (morphologic abnormality)",
          "racemose hemangioma (morphologic abnormality)",
          "arteriovenous malformation",
          "cirsoid aneurysm"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "A benign vascular lesion characterized by the presence of a complex network of communicating arterial and venous vascular structures."
      },
      "child_count": 7,
      "reference_id": "MONDO:0001256"
    },
    {
      "id": 5807,
      "label": "cerebral hemangioma",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        5356,
        20618
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:6621",
          "MEDGEN:164084",
          "NCIT:C5433",
          "UMLS:C0877388"
        ],
        "synonyms": [
          "angioma of cerebral hemispheres",
          "angioma of cerebrum",
          "angioma of the cerebral hemispheres",
          "angioma of the cerebrum",
          "cerebral angioma",
          "cerebral hemangioma",
          "cerebral hemispheric angioma",
          "cerebral hemispheric hemangioma",
          "hemangioma of cerebral hemispheres",
          "hemangioma of cerebrum",
          "hemangioma of telencephalon",
          "hemangioma of the cerebral hemispheres",
          "hemangioma of the cerebrum",
          "telencephalon hemangioma"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          },
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "A hemangioma arising from the cerebral hemisphere."
      },
      "child_count": 2,
      "reference_id": "MONDO:0003948"
    },
    {
      "id": 6420,
      "label": "vein disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        7065
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:866",
          "ICD9:453",
          "MEDGEN:115992",
          "NCIT:C35279",
          "SCTID:90507008",
          "UMLS:C0235522"
        ],
        "synonyms": [
          "disease of vein",
          "disease or disorder of vein",
          "disorder of vein",
          "vein disease",
          "vein disease or disorder"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "A disease involving the vein."
      },
      "child_count": 13,
      "reference_id": "MONDO:0004634"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 3493,
      "label": "arteriovenous hemangioma/malformation"
    },
    {
      "id": 5807,
      "label": "cerebral hemangioma"
    },
    {
      "id": 6420,
      "label": "vein disorder"
    }
  ]
}