{
  "id": 17081,
  "label": "superficial siderosis",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0016594",
  "properties": {
    "xrefs": [
      "GARD:0009484",
      "MEDGEN:1371500",
      "NANDO:1200543",
      "Orphanet:247245",
      "UMLS:C2938918"
    ],
    "synonyms": [
      "hemosiderosis of the central nervous system",
      "superficial hemosiderosis of the CNS",
      "superficial hemosiderosis of the central nervous system",
      "superficial siderosis of the CNS",
      "superficial siderosis of the central nervous system"
    ],
    "categories": [
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ],
    "definition": "Superficial siderosis is a rare neurologic disease characterized by progressive sensorineural hearing loss, cerebellar ataxia, pyramidal signs, and neuroimaging findings revealing hemosiderin deposits in the spinal and cranial leptomeninges and subpial layer. The disease progresses slowly and patients may present with mild cognitive impairment, nystagmus, dysmetria, spasticity, dysdiadochokinesia, dysarthria, hyperreflexia, and Babinski signs. Additional features reported include dementia, urinary incontinence, anosmia, ageusia, and anisocoria."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 7208,
      "label": "neurodegenerative disease",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4657
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:1289",
          "EFO:0005772",
          "ICD9:349.89",
          "MEDGEN:17999",
          "MESH:D019636",
          "NCIT:C4802",
          "SCTID:80690008",
          "UMLS:C0027746"
        ],
        "synonyms": [
          "degenerative disease",
          "brain degeneration",
          "central nervous system degenerative disorder",
          "central nervous system neurodegenerative disorder",
          "degenerative disorder of central nervous system",
          "cerebral degeneration disease"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "A disorder of the central nervous system characterized by gradual and progressive loss of neural tissue and neurologic function."
      },
      "child_count": 22,
      "reference_id": "MONDO:0005559"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 7208,
      "label": "neurodegenerative disease"
    }
  ]
}