{
  "url": "https://dantelabs.com/traits/small-intestinal-polyposis",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "small-intestinal-polyposis",
    "id": "HP:0030256",
    "name": "Small intestinal polyposis",
    "definition": "The presence of multiple polyps in the small intestine.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-digestive-system",
        "name": "Abnormality of the digestive system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-digestive-system"
      },
      {
        "slug": "neoplasm",
        "name": "Abnormal tissue mass",
        "url": "https://dantelabs.com/traits/neoplasm"
      }
    ],
    "broader": [
      {
        "slug": "intestinal-polyposis",
        "name": "Growths in inner lining of intestine",
        "url": "https://dantelabs.com/traits/intestinal-polyposis"
      }
    ],
    "narrower": [
      {
        "slug": "duodenal-polyposis",
        "name": "Duodenal polyposis",
        "genes": 5,
        "url": "https://dantelabs.com/traits/duodenal-polyposis"
      }
    ],
    "genes": [
      {
        "slug": "bmpr1a",
        "symbol": "BMPR1A",
        "hgnc": "HGNC:1076",
        "name": "bone morphogenetic protein receptor type 1A",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/bmpr1a"
      },
      {
        "slug": "eng",
        "symbol": "ENG",
        "hgnc": "HGNC:3349",
        "name": "endoglin",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eng"
      },
      {
        "slug": "smad4",
        "symbol": "SMAD4",
        "hgnc": "HGNC:6770",
        "name": "SMAD family member 4",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/smad4"
      }
    ]
  }
}