{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T12:06:33Z","timestamp":1753877193576,"version":"3.41.2"},"reference-count":8,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2023,10,15]],"date-time":"2023-10-15T00:00:00Z","timestamp":1697328000000},"content-version":"vor","delay-in-days":14,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,10,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Thymomas, the most common mediastinal tumors, form capsules. Only a few reports have presented small thymomas without capsule formation, so-called microthymomas. Here, we report a case of an unencapsulated thymoma measuring 18\u00a0mm. A 42-year-old female presented with an anterior mediastinal tumor. Computed tomography revealed an 18-mm nodule in the anterior mediastinum. Magnetic resonance imaging revealed a solid tumor that was iso-intense on T1-weighted images and hypo-intense on T2-weighted images. Thoracoscopic partial thymectomy was performed. The histopathological diagnosis was a type B1 thymoma. The tumor was localized within the thymic tissue lacked a fibrous capsule and partially invaded the surrounding fat tissue. To our knowledge, this is the first report of an unencapsulated thymoma, except for microthymomas.<\/jats:p>","DOI":"10.1093\/jscr\/rjad543","type":"journal-article","created":{"date-parts":[[2023,10,15]],"date-time":"2023-10-15T17:37:15Z","timestamp":1697391435000},"source":"Crossref","is-referenced-by-count":0,"title":["Unencapsulated thymoma: a case report"],"prefix":"10.1093","volume":"2023","author":[{"given":"Saki","family":"Yamamoto","sequence":"first","affiliation":[{"name":"Department of Thoracic Surgery, Tokyo Yamate Medical Center , 3-22-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eiki","family":"Mizutani","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Tokyo Yamate Medical Center , 3-22-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Riichiro","family":"Morita","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Tokyo Yamate Medical Center , 3-22-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Makoto","family":"Kodama","sequence":"additional","affiliation":[{"name":"Department of Pathology, Tokyo Yamate Medical Center , 3-22-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiko","family":"Abe","sequence":"additional","affiliation":[{"name":"Department of Pathology, Tokyo Yamate Medical Center , 3-22-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takuya","family":"Yazawa","sequence":"additional","affiliation":[{"name":"Department of Pathology, Dokkyo Medical University , 880 Kitakobayashi Shimotsugagun Mibumachi, Tochigi, 321-0293, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2023,10,14]]},"reference":[{"key":"2023101517370938600_ref1","doi-asserted-by":"crossref","first-page":"415","DOI":"10.1097\/01.pas.0000152130.58492.de","article-title":"Microthymoma definition of the entity and distinction from nodular hyperplasia of the thymic epithelium (so-called microscopic thymoma)","volume":"29","author":"Cheuk","year":"2005","journal-title":"Am J Surg Pathol"},{"key":"2023101517370938600_ref2","first-page":"320","volume-title":"Thoracic Tumours","author":"WHO Classification of Tumours Editorial Board","year":"2021","edition":"5th"},{"key":"2023101517370938600_ref3","volume-title":"TNM Classification of Malignant Tumours","author":"Brierley","year":"2017","edition":"8th"},{"key":"2023101517370938600_ref4","doi-asserted-by":"crossref","first-page":"S1710","DOI":"10.1097\/JTO.0b013e31821e8cff","article-title":"The Masaoka-Koga stage classification for thymic malignancies: clarification and definition of terms","volume":"6","author":"Detterbeck","year":"2011","journal-title":"J Thorac Oncol"},{"key":"2023101517370938600_ref5","first-page":"34","volume-title":"Tumors of the Thymus: Atlas of Tumor Pathology, 2nd Series, Fascicle 13","author":"Rosai","year":"1967"},{"key":"2023101517370938600_ref6","first-page":"33","volume-title":"Tumors of the Mediastinum","author":"Shimosato","year":"1997"},{"key":"2023101517370938600_ref7","doi-asserted-by":"crossref","first-page":"811","DOI":"10.2482\/haigan.48.811","article-title":"Case of unencapsulated microthymoma","volume":"48","author":"Wada","year":"2008","journal-title":"Japanese J Lung Cancer"},{"key":"2023101517370938600_ref8","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1115\/1.1427925","article-title":"Multiphase mechanics of capsule formation in tumors","volume":"124","author":"Lubkin","year":"2002","journal-title":"J Biomech Eng"}],"container-title":["Journal of Surgical Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/jscr\/article-pdf\/2023\/10\/rjad543\/52137774\/rjad543.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/jscr\/article-pdf\/2023\/10\/rjad543\/52137774\/rjad543.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,15]],"date-time":"2023-10-15T17:37:22Z","timestamp":1697391442000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/jscr\/article\/doi\/10.1093\/jscr\/rjad543\/7317503"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,10]]},"references-count":8,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2023,10,5]]}},"URL":"https:\/\/doi.org\/10.1093\/jscr\/rjad543","relation":{},"ISSN":["2042-8812"],"issn-type":[{"type":"electronic","value":"2042-8812"}],"subject":[],"published-other":{"date-parts":[[2023,10]]},"published":{"date-parts":[[2023,10]]},"article-number":"rjad543"}}