{
  "id": 7961,
  "label": "thymoma type B1",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0006459",
  "properties": {
    "xrefs": [
      "DOID:6917",
      "EFO:1000584",
      "GARD:0024418",
      "ICDO:8583/1",
      "MEDGEN:224761",
      "NCIT:C6887",
      "UMLS:C1266094"
    ],
    "synonyms": [
      "lymphocyte-predominant thymoma",
      "lymphocyte-rich thymoma",
      "organoid thymoma",
      "predominantly cortical thymoma",
      "thymoma type B1"
    ],
    "categories": [
      {
        "ref": "MONDO:0005046",
        "name": "immune system disorder"
      },
      {
        "ref": "MONDO:0005151",
        "name": "endocrine system disorder"
      },
      {
        "ref": "MONDO:0005570",
        "name": "hematologic disorder"
      }
    ],
    "definition": "A thymic epithelial neoplasm characterized by the presence of expanded areas which resemble the normal thymic cortex. The neoplastic epithelial cells are small and scant and there is a dense T-lymphocytic component present. Areas of medullary differentiation with or without Hassall's corpuscles are also present. It may be associated with myasthenia gravis, pure red cell aplasia, and hypogammaglobulinemia. It has a low grade malignant potential. The majority of cases occur in the anterior mediastinum as Masaoka stage I tumors. A minority of the cases occur as stage II tumors."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 17386,
      "label": "thymoma type B",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6569,
        7959
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:3282",
          "GARD:0020893",
          "MEDGEN:231253",
          "NCIT:C7114",
          "Orphanet:263317",
          "UMLS:C1328042"
        ],
        "synonyms": [
          "Dendritic cell thymoma",
          "dendritic cell thymoma",
          "dendritic cell thymoma (disease)",
          "epithelioid thymoma",
          "plump cell thymoma",
          "primary thymic epithelial neoplasm type B",
          "primary thymic epithelial tumor type B",
          "primary thymic epithelial tumour type B",
          "thymoma type B"
        ],
        "categories": [
          {
            "ref": "MONDO:0005046",
            "name": "immune system disorder"
          },
          {
            "ref": "MONDO:0005151",
            "name": "endocrine system disorder"
          },
          {
            "ref": "MONDO:0005570",
            "name": "hematologic disorder"
          }
        ],
        "definition": "An epithelial neoplasm arising from the thymus. It may be associated with myasthenia gravis, pure red cell aplasia, and hypogammaglobulinemia. It includes thymoma type B1 which is a thymoma of low grade malignant potential, thymoma type B2 which is a thymoma of moderate malignancy, and thymoma type B3 which is also known as well differentiated thymic carcinoma."
      },
      "child_count": 6,
      "reference_id": "MONDO:0016974"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 17386,
      "label": "thymoma type B"
    }
  ]
}