{
  "url": "https://dantelabs.com/traits/small-vessel-vasculitis",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "small-vessel-vasculitis",
    "id": "HP:0011944",
    "name": "Small vessel vasculitis",
    "definition": "A type of vasculitis (inflammation of blood vessel walls) that affects blood vessels that are smaller than arteries, i.e., arterioles, venules, and capilllaries.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-cardiovascular-system",
        "name": "Abnormality of the cardiovascular system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-cardiovascular-system"
      }
    ],
    "broader": [
      {
        "slug": "vasculitis-by-anatomical-site",
        "name": "Vasculitis by anatomical site",
        "url": "https://dantelabs.com/traits/vasculitis-by-anatomical-site"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "lyn",
        "symbol": "LYN",
        "hgnc": "HGNC:6735",
        "name": "LYN proto-oncogene, Src family tyrosine kinase",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lyn"
      },
      {
        "slug": "dnase1l3",
        "symbol": "DNASE1L3",
        "hgnc": "HGNC:2959",
        "name": "deoxyribonuclease 1L3",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dnase1l3"
      },
      {
        "slug": "mefv",
        "symbol": "MEFV",
        "hgnc": "HGNC:6998",
        "name": "MEFV innate immunity regulator, pyrin",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mefv"
      },
      {
        "slug": "ptpn6",
        "symbol": "PTPN6",
        "hgnc": "HGNC:9658",
        "name": "protein tyrosine phosphatase non-receptor type 6",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ptpn6"
      },
      {
        "slug": "was",
        "symbol": "WAS",
        "hgnc": "HGNC:12731",
        "name": "WASP actin nucleation promoting factor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/was"
      }
    ]
  }
}