{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T09:00:33Z","timestamp":1781254833543,"version":"3.54.1"},"reference-count":16,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,4,14]],"date-time":"2026-04-14T00:00:00Z","timestamp":1776124800000},"content-version":"vor","delay-in-days":13,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Case Reports"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Organic solvents contained in oil and waterproofing sprays, along with glycerin and propylene glycol found in e\u2010cigarettes, have been reported to trigger exogenous lipoid pneumonia. We report a 30\u2010year\u2010old male who developed lipoid pneumonia following exposure to paraffin\u2010based oil spray, waterproofing spray, and subsequent e\u2010cigarette use. Initial evaluation suggested occupational asthma due to elevated IgE and fractional exhaled nitric oxide levels, but inhaled corticosteroid therapy was ineffective. Chest computed tomography eventually revealed diffuse ground\u2010glass opacities, and bronchoalveolar lavage fluid analysis demonstrated lipid\u2010laden macrophages, confirming the diagnosis. Component analysis indicated that e\u2010cigarette vapor containing glycerin and propylene glycol was the primary trigger, whereas occupational exposures contributed minimally. The patient was managed with observation without steroid therapy, and symptoms resolved over 4\u2009months with lifestyle modifications, including cessation of e\u2010cigarette use. This case highlights the combined impact of occupational and lifestyle factors in exogenous lipoid pneumonia and emphasizes the importance of assessing inhaled substances, workplace environment, and e\u2010cigarette use to determine the cause and guide exposure control.<\/jats:p>","DOI":"10.1002\/ccr3.72520","type":"journal-article","created":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T04:14:02Z","timestamp":1776226442000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Exogenous Lipoid Pneumonia Caused by E\u2010Cigarette Use Following Exposure to Oil Spray and Waterproofing Spray: A Case Report"],"prefix":"10.1002","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3136-4590","authenticated-orcid":false,"given":"Ikuo","family":"Wakamatsu","sequence":"first","affiliation":[{"name":"Division of Allergy and Respiratory Medicine, Integrative Center of Internal Medicine Gunma University Hospital  Maebashi Gunma Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6840-515X","authenticated-orcid":false,"given":"Masakiyo","family":"Yatomi","sequence":"additional","affiliation":[{"name":"Division of Allergy and Respiratory Medicine, Integrative Center of Internal Medicine Gunma University Hospital  Maebashi Gunma Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-7946-3447","authenticated-orcid":false,"given":"Yuya","family":"Kuroiwa","sequence":"additional","affiliation":[{"name":"Division of Allergy and Respiratory Medicine, Integrative Center of Internal Medicine Gunma University Hospital  Maebashi Gunma Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-4579-0064","authenticated-orcid":false,"given":"Masataka","family":"Toyoda","sequence":"additional","affiliation":[{"name":"Division of Allergy and Respiratory Medicine, 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