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Unencapsulated thymoma: a case report
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 mm. A 42-year-old female presented with an anterior mediastinal tumor. Co...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10576996/ https://www.ncbi.nlm.nih.gov/pubmed/37846423 http://dx.doi.org/10.1093/jscr/rjad543 |
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author | Yamamoto, Saki Mizutani, Eiki Morita, Riichiro Kodama, Makoto Abe, Keiko Yazawa, Takuya |
author_facet | Yamamoto, Saki Mizutani, Eiki Morita, Riichiro Kodama, Makoto Abe, Keiko Yazawa, Takuya |
author_sort | Yamamoto, Saki |
collection | PubMed |
description | 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 mm. 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. |
format | Online Article Text |
id | pubmed-10576996 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-105769962023-10-16 Unencapsulated thymoma: a case report Yamamoto, Saki Mizutani, Eiki Morita, Riichiro Kodama, Makoto Abe, Keiko Yazawa, Takuya J Surg Case Rep Case Report 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 mm. 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. Oxford University Press 2023-10-14 /pmc/articles/PMC10576996/ /pubmed/37846423 http://dx.doi.org/10.1093/jscr/rjad543 Text en Published by Oxford University Press and JSCR Publishing Ltd. © The Author(s) 2023. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Case Report Yamamoto, Saki Mizutani, Eiki Morita, Riichiro Kodama, Makoto Abe, Keiko Yazawa, Takuya Unencapsulated thymoma: a case report |
title | Unencapsulated thymoma: a case report |
title_full | Unencapsulated thymoma: a case report |
title_fullStr | Unencapsulated thymoma: a case report |
title_full_unstemmed | Unencapsulated thymoma: a case report |
title_short | Unencapsulated thymoma: a case report |
title_sort | unencapsulated thymoma: a case report |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10576996/ https://www.ncbi.nlm.nih.gov/pubmed/37846423 http://dx.doi.org/10.1093/jscr/rjad543 |
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