{
  "id": 6813,
  "label": "pterygium",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0005085",
  "properties": {
    "xrefs": [
      "DOID:0002116",
      "EFO:0000678",
      "ICD10CM:H11.0",
      "ICD9:372.4",
      "ICD9:372.40",
      "MEDGEN:46202",
      "MESH:D011625",
      "NCIT:C133744",
      "SCTID:77489003",
      "UMLS:C0033999",
      "icd11.foundation:1207385905"
    ],
    "synonyms": [
      "pterygium of conjunctiva and cornea"
    ],
    "categories": [
      {
        "ref": "MONDO:0002022",
        "name": "disorder of orbital region"
      },
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      },
      {
        "ref": "MONDO:0024458",
        "name": "disorder of visual system"
      }
    ],
    "definition": "A wedge-shaped fibrovascular lesion arising from the bulbar conjunctiva and extending to the cornea. It is caused by chronic exposure to solar ultraviolet radiation, heat, and dust. It may cause severe vision loss. Studies have linked pterygium to neoplastic proliferation and suggest that it may be a stem cell disorder."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 3,
  "parents": [
    {
      "id": 7676,
      "label": "benign conjunctival neoplasm",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        19761,
        20576
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "EFO:1000110",
          "ICD10CM:D31.0",
          "MEDGEN:56328",
          "NCIT:C3622",
          "SCTID:92068002",
          "UMLS:C0154025"
        ],
        "synonyms": [
          "benign conjunctiva neoplasm",
          "benign conjunctiva tumor",
          "benign conjunctiva tumour",
          "benign conjunctival neoplasm",
          "benign conjunctival tumor",
          "benign conjunctival tumour",
          "benign neoplasm of conjunctiva",
          "benign neoplasm of the conjunctiva",
          "benign tumor of conjunctiva",
          "benign tumor of the conjunctiva",
          "benign tumour of conjunctiva",
          "benign tumour of the conjunctiva",
          "conjunctiva benign neoplasm"
        ],
        "categories": [
          {
            "ref": "MONDO:0002022",
            "name": "disorder of orbital region"
          },
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "Abnormal growth of the cells of the conjunctiva without malignant characteristics."
      },
      "child_count": 6,
      "reference_id": "MONDO:0006105"
    },
    {
      "id": 20574,
      "label": "benign neoplasm of cornea",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        20447,
        20576
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "ICD10CM:D31.1",
          "ICD9:224.4",
          "MEDGEN:57579",
          "NCIT:C3623",
          "SCTID:92070006",
          "UMLS:C0154026",
          "icd11.foundation:568257604"
        ],
        "synonyms": [
          "benign cornea neoplasm",
          "benign cornea tumor",
          "benign cornea tumour",
          "benign corneal neoplasm",
          "benign corneal tumor",
          "benign corneal tumour",
          "benign neoplasm of the cornea",
          "benign tumor of cornea",
          "benign tumor of the cornea",
          "benign tumour of cornea",
          "benign tumour of the cornea",
          "cornea benign neoplasm"
        ],
        "categories": [
          {
            "ref": "MONDO:0002022",
            "name": "disorder of orbital region"
          },
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "A benign neoplasm that involves the cornea."
      },
      "child_count": 2,
      "reference_id": "MONDO:0021452"
    },
    {
      "id": 24305,
      "label": "ocular growth disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        7019
      ],
      "type_id": 0,
      "properties": {
        "categories": [
          {
            "ref": "MONDO:0002022",
            "name": "disorder of orbital region"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "An eye disorder characterized by an aberrant development of the eye resulting in significant shortening or elongation, and therefore affecting the final ocular dimensions."
      },
      "child_count": 7,
      "reference_id": "MONDO:0100581"
    }
  ],
  "children": [
    {
      "id": 3310,
      "label": "double pterygium",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        6813
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:10525",
          "ICD9:372.44",
          "MEDGEN:509817",
          "SCTID:41564009",
          "UMLS:C0155157"
        ],
        "categories": [
          {
            "ref": "MONDO:0002022",
            "name": "disorder of orbital region"
          },
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0001054"
    },
    {
      "id": 3311,
      "label": "conjunctival pterygium",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        3218,
        6813
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:10526",
          "MEDGEN:1625284",
          "UMLS:C4520843"
        ],
        "categories": [
          {
            "ref": "MONDO:0002022",
            "name": "disorder of orbital region"
          },
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ]
      },
      "child_count": 2,
      "reference_id": "MONDO:0001055"
    },
    {
      "id": 9641,
      "label": "familial pterygium of the conjunctiva",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        6813,
        24270
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0004569",
          "MEDGEN:896736",
          "MESH:C566740",
          "OMIM:178000",
          "Orphanet:2989",
          "UMLS:C4274782"
        ],
        "synonyms": [
          "pterygium of conjunctiva and cornea",
          "pterygium of the conjunctiva and cornea"
        ],
        "categories": [
          {
            "ref": "MONDO:0002022",
            "name": "disorder of orbital region"
          },
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          },
          {
            "ref": "MONDO:0024458",
            "name": "disorder of visual system"
          }
        ],
        "definition": "Familial pterygium of the conjunctiva is a rare form of pterygium, which develops in early adulthood, characterized by a wing-like bulbar thickening of the conjunctiva in the interpalpebral fissure area that can be cured by surgical excision."
      },
      "child_count": 0,
      "reference_id": "MONDO:0008337"
    }
  ],
  "roots": [
    {
      "id": 7676,
      "label": "benign conjunctival neoplasm"
    },
    {
      "id": 20574,
      "label": "benign neoplasm of cornea"
    },
    {
      "id": 24305,
      "label": "ocular growth disorder"
    }
  ]
}