{
  "url": "https://dantelabs.com/traits/accessory-spleen",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "accessory-spleen",
    "id": "HP:0001747",
    "name": "Accessory spleen",
    "definition": "An accessory spleen is a round, iso-echogenic, homogenic and smooth structure and is seen as a normal variant mostly on the medial contour of the spleen, near the hilus or around the lower pole. This has no pathogenic relevance.",
    "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": "supernumerary-spleens",
        "name": "Extra spleen",
        "url": "https://dantelabs.com/traits/supernumerary-spleens"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "atp6ap1",
        "symbol": "ATP6AP1",
        "hgnc": "HGNC:868",
        "name": "ATPase H+ transporting accessory protein 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp6ap1"
      },
      {
        "slug": "cachd1",
        "symbol": "CACHD1",
        "hgnc": "HGNC:29314",
        "name": "cache domain containing 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cachd1"
      },
      {
        "slug": "crebbp",
        "symbol": "CREBBP",
        "hgnc": "HGNC:2348",
        "name": "CREB binding lysine acetyltransferase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/crebbp"
      },
      {
        "slug": "ep300",
        "symbol": "EP300",
        "hgnc": "HGNC:3373",
        "name": "EP300 lysine acetyltransferase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ep300"
      },
      {
        "slug": "exoc2",
        "symbol": "EXOC2",
        "hgnc": "HGNC:24968",
        "name": "exocyst complex component 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/exoc2"
      },
      {
        "slug": "rbsn",
        "symbol": "RBSN",
        "hgnc": "HGNC:20759",
        "name": "rabenosyn, RAB effector",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rbsn"
      },
      {
        "slug": "yars1",
        "symbol": "YARS1",
        "hgnc": "HGNC:12840",
        "name": "tyrosyl-tRNA synthetase 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/yars1"
      },
      {
        "slug": "b9d1",
        "symbol": "B9D1",
        "hgnc": "HGNC:24123",
        "name": "B9 domain containing 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/b9d1"
      },
      {
        "slug": "b9d2",
        "symbol": "B9D2",
        "hgnc": "HGNC:28636",
        "name": "B9 domain containing 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/b9d2"
      },
      {
        "slug": "cc2d2a",
        "symbol": "CC2D2A",
        "hgnc": "HGNC:29253",
        "name": "coiled-coil and C2 domain containing 2A",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cc2d2a"
      },
      {
        "slug": "cep290",
        "symbol": "CEP290",
        "hgnc": "HGNC:29021",
        "name": "centrosomal protein 290",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cep290"
      },
      {
        "slug": "cilk1",
        "symbol": "CILK1",
        "hgnc": "HGNC:21219",
        "name": "ciliogenesis associated kinase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cilk1"
      },
      {
        "slug": "ciroz",
        "symbol": "CIROZ",
        "hgnc": "HGNC:26730",
        "name": "ciliated left-right organizer protein containing ZP-N domains",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ciroz"
      },
      {
        "slug": "cspp1",
        "symbol": "CSPP1",
        "hgnc": "HGNC:26193",
        "name": "centrosome and spindle pole associated protein 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cspp1"
      },
      {
        "slug": "ltbp4",
        "symbol": "LTBP4",
        "hgnc": "HGNC:6717",
        "name": "latent transforming growth factor beta binding protein 4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ltbp4"
      },
      {
        "slug": "mks1",
        "symbol": "MKS1",
        "hgnc": "HGNC:7121",
        "name": "MKS transition zone complex subunit 1",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mks1"
      },
      {
        "slug": "ppp2r3c",
        "symbol": "PPP2R3C",
        "hgnc": "HGNC:17485",
        "name": "protein phosphatase 2 regulatory subunit B''gamma",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ppp2r3c"
      },
      {
        "slug": "prim1",
        "symbol": "PRIM1",
        "hgnc": "HGNC:9369",
        "name": "DNA primase subunit 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prim1"
      },
      {
        "slug": "rpgrip1",
        "symbol": "RPGRIP1",
        "hgnc": "HGNC:13436",
        "name": "RPGR interacting protein 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rpgrip1"
      },
      {
        "slug": "rpgrip1l",
        "symbol": "RPGRIP1L",
        "hgnc": "HGNC:29168",
        "name": "RPGRIP1 like",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rpgrip1l"
      },
      {
        "slug": "tctn1",
        "symbol": "TCTN1",
        "hgnc": "HGNC:26113",
        "name": "tectonic family member 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tctn1"
      },
      {
        "slug": "tctn2",
        "symbol": "TCTN2",
        "hgnc": "HGNC:25774",
        "name": "tectonic family member 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tctn2"
      },
      {
        "slug": "tctn3",
        "symbol": "TCTN3",
        "hgnc": "HGNC:24519",
        "name": "tectonic family member 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tctn3"
      },
      {
        "slug": "tmem107",
        "symbol": "TMEM107",
        "hgnc": "HGNC:28128",
        "name": "transmembrane protein 107",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tmem107"
      },
      {
        "slug": "tmem216",
        "symbol": "TMEM216",
        "hgnc": "HGNC:25018",
        "name": "transmembrane protein 216",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tmem216"
      },
      {
        "slug": "tmem231",
        "symbol": "TMEM231",
        "hgnc": "HGNC:37234",
        "name": "transmembrane protein 231",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tmem231"
      },
      {
        "slug": "tmem237",
        "symbol": "TMEM237",
        "hgnc": "HGNC:14432",
        "name": "transmembrane protein 237",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tmem237"
      },
      {
        "slug": "tmem67",
        "symbol": "TMEM67",
        "hgnc": "HGNC:28396",
        "name": "transmembrane protein 67",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tmem67"
      },
      {
        "slug": "txndc15",
        "symbol": "TXNDC15",
        "hgnc": "HGNC:20652",
        "name": "thioredoxin domain containing 15",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/txndc15"
      },
      {
        "slug": "wt1",
        "symbol": "WT1",
        "hgnc": "HGNC:12796",
        "name": "WT1 transcription factor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/wt1"
      },
      {
        "slug": "cenpf",
        "symbol": "CENPF",
        "hgnc": "HGNC:1857",
        "name": "centromere protein F",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cenpf"
      },
      {
        "slug": "cplx1",
        "symbol": "CPLX1",
        "hgnc": "HGNC:2309",
        "name": "complexin 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cplx1"
      },
      {
        "slug": "ctbp1",
        "symbol": "CTBP1",
        "hgnc": "HGNC:2494",
        "name": "C-terminal binding protein 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctbp1"
      },
      {
        "slug": "esco2",
        "symbol": "ESCO2",
        "hgnc": "HGNC:27230",
        "name": "establishment of sister chromatid cohesion N-acetyltransferase 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/esco2"
      },
      {
        "slug": "fgfrl1",
        "symbol": "FGFRL1",
        "hgnc": "HGNC:3693",
        "name": "fibroblast growth factor receptor like 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fgfrl1"
      },
      {
        "slug": "hyls1",
        "symbol": "HYLS1",
        "hgnc": "HGNC:26558",
        "name": "HYLS1 centriolar and ciliogenesis associated",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hyls1"
      },
      {
        "slug": "letm1",
        "symbol": "LETM1",
        "hgnc": "HGNC:6556",
        "name": "leucine zipper and EF-hand containing transmembrane protein 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/letm1"
      },
      {
        "slug": "mycn",
        "symbol": "MYCN",
        "hgnc": "HGNC:7559",
        "name": "MYCN proto-oncogene, bHLH transcription factor",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mycn"
      },
      {
        "slug": "myrf",
        "symbol": "MYRF",
        "hgnc": "HGNC:1181",
        "name": "myelin regulatory factor",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/myrf"
      },
      {
        "slug": "nsd2",
        "symbol": "NSD2",
        "hgnc": "HGNC:12766",
        "name": "nuclear receptor binding SET domain protein 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nsd2"
      }
    ]
  }
}