{
  "abstract": "A 68-year-old long-term welder was referred for the evaluation of a right lower lobe opacity after a fever and cough had resolved. Chest CT revealed a mass-like lesion in the right lower lobe with heterogeneous high-attenuation areas and centrilobular nodular opacities in both upper lobes. A transbronchial biopsy of the mass-like lesion showed hemosiderin deposits with fibrosis and mild inflammation, without any findings strongly suggestive of infection or malignancy. The lesion partially regressed following a reduction in welding fume exposure, suggesting a possible association with chronic occupational exposure and a transient non-specific pulmonary insult.The recognition of occupational exposure and short-term follow-up may help avoid unnecessary invasive procedures in the future.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "name": "Masako Morita"
    },
    {
      "name": "Shingo Takahashi"
    },
    {
      "name": "Atsuki Fukada"
    },
    {
      "name": "Ai Sugimoto"
    },
    {
      "name": "Hiroyuki Matsuda"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ba635xkn4hnjc.bib",
  "cited_by": 0,
  "doi": "10.2169/internalmedicine.7571-26",
  "fulltext_url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7571-26/_article",
  "id": "ba635xkn4hnjc",
  "issns": [
    "1349-7235",
    "0918-2918"
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  "landing_url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7571-26/_article",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "jstage-journal",
      "medicine/general"
    ],
    [
      "openalex",
      "2740|Medical Imaging and Pathology Studies"
    ]
  ],
  "openalex": "W7204142276",
  "pdf_url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7571-26/_pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-25",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ba635xkn4hnjc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:31Z",
      "native_id": "10.2169/internalmedicine.7571-26",
      "source": "jstage",
      "url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7571-26/_article"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2740|Medical Imaging and Pathology Studies",
      "subfield": "general"
    }
  ],
  "title": "Reversible Pulmonary Mass Associated with Long-term Welding Fume Exposure: A Case Report",
  "title_text": "Reversible Pulmonary Mass Associated with Long-term Welding Fume Exposure: A Case Report",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:31Z",
  "url": "https://research.draconitic.com/paper/ba635xkn4hnjc",
  "venue": "Internal Medicine",
  "versions": []
}