{
  "url": "https://dantelabs.com/traits/megaduodenum",
  "trait": {
    "bundleId": "2026.10.18-e609d43e",
    "release": "2026-09-01",
    "slug": "megaduodenum",
    "id": "HP:0030996",
    "name": "Megaduodenum",
    "definition": "Dilation and elongation of the duodenum with hypertrophy of all layers of the duodenum.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-digestive-system",
        "name": "Abnormality of the digestive system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-digestive-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-duodenum-morphology",
        "name": "Abnormal duodenum morphology",
        "url": "https://dantelabs.com/traits/abnormal-duodenum-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "actg2",
        "symbol": "ACTG2",
        "hgnc": "HGNC:145",
        "name": "actin gamma 2, smooth muscle",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/actg2"
      },
      {
        "slug": "rad21",
        "symbol": "RAD21",
        "hgnc": "HGNC:9811",
        "name": "RAD21 cohesin complex component",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rad21"
      },
      {
        "slug": "myh11",
        "symbol": "MYH11",
        "hgnc": "HGNC:7569",
        "name": "myosin heavy chain 11",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/myh11"
      }
    ]
  }
}