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Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass
A 61-year-old man presented to the emergency room with lower extremity edema. Physical exam was only remarkable for a diastolic murmur in the right carotid area and left lower extremity edema. Venous Doppler revealed a deep venous thrombosis in the left lower extremity. Chest computed tomography (CT...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Houston Methodist DeBakey Heart & Vascular Center
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8588750/ https://www.ncbi.nlm.nih.gov/pubmed/34824674 http://dx.doi.org/10.14797/mdcvj.516 |
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author | Swimley, Kent Gonzalez-Bonilla, Hilda M. Senapati, Alpana Kurrelmeyer, Karla M. |
author_facet | Swimley, Kent Gonzalez-Bonilla, Hilda M. Senapati, Alpana Kurrelmeyer, Karla M. |
author_sort | Swimley, Kent |
collection | PubMed |
description | A 61-year-old man presented to the emergency room with lower extremity edema. Physical exam was only remarkable for a diastolic murmur in the right carotid area and left lower extremity edema. Venous Doppler revealed a deep venous thrombosis in the left lower extremity. Chest computed tomography (CT) with intravenous contrast ruled out pulmonary embolism but showed a mediastinal mass adjacent to the pericardium. Further imaging with cardiac magnetic resonance imaging (CMR) and cardiac CT angiography (CCTA) enabled localization and evaluation of the structural characteristics of the mass. The decision was made to excise the mass due to increasing size compared with its measurements on prior chest CTs and a high degree of vascularization seen on CMR and CCTA, which was concerning for an enlarging arteriovenous malformation or a hemangioma. However, histopathologic analysis of the mass revealed it to be a micronodular thymoma. |
format | Online Article Text |
id | pubmed-8588750 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Houston Methodist DeBakey Heart & Vascular Center |
record_format | MEDLINE/PubMed |
spelling | pubmed-85887502021-11-24 Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass Swimley, Kent Gonzalez-Bonilla, Hilda M. Senapati, Alpana Kurrelmeyer, Karla M. Methodist Debakey Cardiovasc J Case Report A 61-year-old man presented to the emergency room with lower extremity edema. Physical exam was only remarkable for a diastolic murmur in the right carotid area and left lower extremity edema. Venous Doppler revealed a deep venous thrombosis in the left lower extremity. Chest computed tomography (CT) with intravenous contrast ruled out pulmonary embolism but showed a mediastinal mass adjacent to the pericardium. Further imaging with cardiac magnetic resonance imaging (CMR) and cardiac CT angiography (CCTA) enabled localization and evaluation of the structural characteristics of the mass. The decision was made to excise the mass due to increasing size compared with its measurements on prior chest CTs and a high degree of vascularization seen on CMR and CCTA, which was concerning for an enlarging arteriovenous malformation or a hemangioma. However, histopathologic analysis of the mass revealed it to be a micronodular thymoma. Houston Methodist DeBakey Heart & Vascular Center 2021-10-19 /pmc/articles/PMC8588750/ /pubmed/34824674 http://dx.doi.org/10.14797/mdcvj.516 Text en Copyright: © 2021 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Case Report Swimley, Kent Gonzalez-Bonilla, Hilda M. Senapati, Alpana Kurrelmeyer, Karla M. Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass |
title | Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass |
title_full | Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass |
title_fullStr | Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass |
title_full_unstemmed | Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass |
title_short | Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass |
title_sort | micronodular thymoma with lymphoid stroma: a mediastinal mass masquerading as a pericardial mass |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8588750/ https://www.ncbi.nlm.nih.gov/pubmed/34824674 http://dx.doi.org/10.14797/mdcvj.516 |
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