{
  "id": "SCR-LIP-000204",
  "statement": "Near-infrared fluorescence lymphatic imaging (NIRF-LI) of 20 individuals with Stage I-II lipedema showed dilated lymphatic vessels (94-100% of legs), increased lymphatic propulsion rate (1.4 events/min vs 0.9 in controls, p=0.0102/0.0258), and complete ABSENCE of dermal backflow, in contrast to lymphedema; foot fat-sparing attenuation was seen in ~81% of legs, and absence of dermal backflow correctly excluded lymphedema in a previously misdiagnosed patient.",
  "statement_pt": "A imagem linfática por fluorescência no infravermelho próximo (NIRF-LI) de 20 indivíduos com lipedema estágio I-II mostrou vasos linfáticos dilatados (94-100% das pernas), taxa de propulsão linfática aumentada (1,4 eventos/min vs 0,9 em controles, p=0,0102/0,0258) e AUSÊNCIA completa de dermal backflow, em contraste com o linfedema; atenuação por 'fat-sparing' do pé foi vista em ~81% das pernas, e a ausência de dermal backflow excluiu corretamente linfedema em uma paciente previamente mal-diagnosticada.",
  "claim_type": "clinical_association",
  "context": {
    "population": "—",
    "condition": "lipedema",
    "exposure": "—",
    "comparator": "—",
    "outcome": "—",
    "scope": "auto-ingested from Layer 1 surveillance"
  },
  "knowledge_state": "emerging",
  "evidence_confidence": "moderate",
  "evidence": [
    {
      "ref": "DOI:10.1002/oby.23458",
      "stance": "supporting",
      "study_design": "case_series",
      "n": null,
      "risk_of_bias": "unknown",
      "grade": "low",
      "year": 2022,
      "amato_authored": false,
      "note": "Pilot imaging study directly addressing whether functional lymphatic imaging differentiates lipedema from lymphedema, finding distinct features (no dermal backflow, increased propulsion, foot fat-sparing) that distinguish early lipedema; th [grade capped moderate->low per curated Oxford N4]",
      "title": "Lymphatic function and anatomy in early stages of lipedema",
      "authors": "Rasmussen et al.",
      "journal": "Obesity",
      "_prov": {
        "grade_source": "bib_curated"
      }
    }
  ],
  "relations": [],
  "gaps": "Auto-ingested single source; not yet human-reviewed.",
  "primary_amato_source": null,
  "curators": [],
  "provenance": {
    "auto": true,
    "engine": "anthropic/claude-opus-4.8",
    "question": "SQ-LIP-000023",
    "source": "library",
    "ingested": "2026-05-31"
  },
  "created": "2026-05-31",
  "updated": "2026-05-31",
  "history": [
    {
      "date": "2026-05-31",
      "event": "created",
      "detail": "auto-ingested for SQ-LIP-000023"
    }
  ],
  "license": "CC-BY-4.0",
  "answers_questions": [
    {
      "id": "SQ-LIP-000023",
      "role": "supporting",
      "question": "Can MRI, lymphoscintigraphy, or DXA differentiate lipedema from lymphedema and other fat distributions?",
      "url": "https://scientificclaims.org/q/SQ-LIP-000023.html"
    }
  ],
  "url": "https://scientificclaims.org/c/SCR-LIP-000204.html"
}