{
  "url": "https://dantelabs.com/traits/supernumerary-spleens",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "supernumerary-spleens",
    "id": "HP:0009799",
    "name": "Extra spleen",
    "label": "Supernumerary spleens",
    "definition": "The presence of two or more accessory spleens.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-cardiovascular-system",
        "name": "Abnormality of the cardiovascular system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-cardiovascular-system"
      },
      {
        "slug": "abnormality-of-the-digestive-system",
        "name": "Abnormality of the digestive system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-digestive-system"
      },
      {
        "slug": "abnormality-of-the-immune-system",
        "name": "Abnormality of the immune system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-immune-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-spleen-morphology",
        "name": "Abnormal spleen morphology",
        "url": "https://dantelabs.com/traits/abnormal-spleen-morphology"
      }
    ],
    "narrower": [
      {
        "slug": "polysplenia",
        "name": "Multiple small spleens",
        "genes": 72,
        "url": "https://dantelabs.com/traits/polysplenia"
      },
      {
        "slug": "accessory-spleen",
        "name": "Accessory spleen",
        "genes": 40,
        "url": "https://dantelabs.com/traits/accessory-spleen"
      }
    ],
    "genes": []
  }
}