{
  "url": "https://dantelabs.com/traits/chalazion",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "chalazion",
    "id": "HP:0010605",
    "name": "Chalazion",
    "definition": "A chronic epithelioid cell granulomatous inflammation of the meibomian gland caused by inflammation of a blocked meibomian gland. A chalazion or meibomian cyst appears as a painless tuberous swelling in the upper lid without loss of eyelashes.",
    "synonyms": [
      "Meibomian gland lipogranuloma"
    ],
    "systems": [
      {
        "slug": "abnormality-of-head-or-neck",
        "name": "Abnormality of head or neck",
        "url": "https://dantelabs.com/traits/abnormality-of-head-or-neck"
      },
      {
        "slug": "abnormality-of-the-integument",
        "name": "Abnormality of the integument",
        "url": "https://dantelabs.com/traits/abnormality-of-the-integument"
      }
    ],
    "broader": [
      {
        "slug": "cyst-of-the-eyelid",
        "name": "Cyst of the eyelid",
        "url": "https://dantelabs.com/traits/cyst-of-the-eyelid"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "extl3",
        "symbol": "EXTL3",
        "hgnc": "HGNC:3518",
        "name": "exostosin like glycosyltransferase 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/extl3"
      }
    ]
  }
}