{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T00:21:44Z","timestamp":1769127704088,"version":"3.49.0"},"reference-count":13,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T00:00:00Z","timestamp":1768348800000},"content-version":"vor","delay-in-days":13,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"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":[[2026,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Caplan syndrome, known as rheumatoid pneumoconiosis, is a combination of silicosis and rheumatoid arthritis. It is a very rare condition and is underdiagnosed in our context despite the large number of people exposed to dust. Exposure to silica is a risk factor for various diseases. Our case involves a 39\u2010year\u2010old gold miner who had worked in an artisanal mine for over 20\u2009years. He presented with chronic progressive, additive, bilateral, and symmetrical polyarthritis of the small metacarpophalangeal joints, all proximal interphalangeal joints, and large wrist and knee joints, with relative functional impairment. The clinical picture evolved in a chronic and febrile context. Based on clinical and paraclinical examinations, a diagnosis of Caplan syndrome was made. Due to its rarity, Caplan syndrome can go unnoticed. It is important for clinicians to have an overview of this disease, particularly in patients exposed to silica dust. Management must be multidisciplinary and subject to rigorous follow\u2010up.<\/jats:p>","DOI":"10.1002\/ccr3.71864","type":"journal-article","created":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T10:12:35Z","timestamp":1768385555000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Caplan Syndrome: A Case Report"],"prefix":"10.1002","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-5724-3616","authenticated-orcid":false,"given":"Ali Moussa Mahaman","family":"Laouali","sequence":"first","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ma\u00efga","family":"Soumaila","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5809-7576","authenticated-orcid":false,"given":"Ismael Ayouba","family":"Tinni","sequence":"additional","affiliation":[{"name":"Department of Rheumatology Amirou Boubacar Diallo Hospital  Niamey Niger"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ngo Ngue Tecler","family":"Cl\u00e9mence","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zoundi Lydia","family":"Rosine","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ousmane","family":"Demb\u00e9l\u00e9","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soubeiga","family":"Dimitri","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Essaga Eloundou","family":"Christ\u00e8le","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moussa","family":"Rahanatou","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Issa","family":"Ou\u00e9draogo","sequence":"additional","affiliation":[{"name":"Department of Rheumatology Bogodogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Boncoungou","family":"Kadiatou","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Badoum","family":"Giselle","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ou\u00e9draogo","family":"Martial","sequence":"additional","affiliation":[{"name":"Department of Pulmonology Yalgado Ou\u00e9draogo University Hospital Center  Ouagadougou Burkina Faso"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,1,14]]},"reference":[{"key":"e_1_2_11_2_1","first-page":"14","article-title":"Diagnosis and Complications of Silicosis","volume":"93","author":"Senhaji L.","year":"2019","journal-title":"Revue De M\u00e9decine Pratique"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-68888-6_6"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9343(73)90209-X"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.294.6578.997"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1136\/oem.60.2.122"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1177\/153537020623100506"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.3109\/08941939609012455"},{"key":"e_1_2_11_9_1","first-page":"38","article-title":"Silica and the Immune System","volume":"2","author":"Pernis B.","year":"2005","journal-title":"Acta Bio Medica: Atenei Parmensis"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.1265\/jjh.60.30"},{"key":"e_1_2_11_11_1","first-page":"261","article-title":"Immunological Effects of Silica and Asbestosis","volume":"4","author":"Otsuki T.","year":"2007","journal-title":"Cellular & Molecular Immunology"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejim.2010.02.004"},{"key":"e_1_2_11_13_1","article-title":"A Case of Caplan Syndrome in a Patient With Silicosis","volume":"209","author":"Rayasam V.","year":"2024","journal-title":"American Journal of Respiratory and Critical Care Medicine"},{"key":"e_1_2_11_14_1","first-page":"36","article-title":"Caplan and Collinet Syndrome: An Immunological Approach","volume":"50","author":"Racil H.","year":"2010","journal-title":"French Journal of Allergology"}],"container-title":["Clinical Case 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