{
  "url": "https://dantelabs.com/traits/abnormal-breast-morphology",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "abnormal-breast-morphology",
    "id": "HP:0031093",
    "name": "Abnormal breast morphology",
    "definition": "Any anomaly of the structure of the breast.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-breast",
        "name": "Abnormality of the breast",
        "url": "https://dantelabs.com/traits/abnormality-of-the-breast"
      }
    ],
    "broader": [
      {
        "slug": "abnormality-of-the-breast",
        "name": "Abnormality of the breast",
        "url": "https://dantelabs.com/traits/abnormality-of-the-breast"
      }
    ],
    "narrower": [
      {
        "slug": "gynecomastia",
        "name": "Enlarged male breast",
        "genes": 99,
        "url": "https://dantelabs.com/traits/gynecomastia"
      },
      {
        "slug": "neoplasm-of-the-breast",
        "name": "Breast tumor",
        "genes": 27,
        "url": "https://dantelabs.com/traits/neoplasm-of-the-breast"
      },
      {
        "slug": "aplasia-hypoplasia-of-the-breasts",
        "name": "Absent/small breasts",
        "genes": 22,
        "url": "https://dantelabs.com/traits/aplasia-hypoplasia-of-the-breasts"
      },
      {
        "slug": "abnormal-nipple-morphology",
        "name": "Abnormality of the nipple",
        "genes": 1,
        "url": "https://dantelabs.com/traits/abnormal-nipple-morphology"
      },
      {
        "slug": "breast-hypertrophy",
        "name": "Breast hypertrophy",
        "genes": 1,
        "url": "https://dantelabs.com/traits/breast-hypertrophy"
      },
      {
        "slug": "breast-mass",
        "name": "Breast mass",
        "genes": 1,
        "url": "https://dantelabs.com/traits/breast-mass"
      },
      {
        "slug": "abnormal-areolar-morphology",
        "name": "Abnormal areolar morphology",
        "genes": 0,
        "url": "https://dantelabs.com/traits/abnormal-areolar-morphology"
      }
    ],
    "genes": [
      {
        "slug": "ikbkg",
        "symbol": "IKBKG",
        "hgnc": "HGNC:5961",
        "name": "inhibitor of nuclear factor kappa B kinase regulatory subunit gamma",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ikbkg"
      }
    ]
  }
}