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...
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Houston Methodist DeBakey Heart & Vascular Center
2021-10-01
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| Series: | Methodist DeBakey Cardiovascular Journal |
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| Online Access: | https://account.journal.houstonmethodist.org/index.php/up-j-mdbcj/article/view/516 |
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| author | Kent Swimley Hilda M. Gonzalez-Bonilla Alpana Senapati Karla M. Kurrelmeyer |
| author_facet | Kent Swimley Hilda M. Gonzalez-Bonilla Alpana Senapati Karla M. Kurrelmeyer |
| author_sort | Kent Swimley |
| collection | DOAJ |
| 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 | Article |
| id | doaj-art-bd85cdbf312e4491a9082e4036e648a9 |
| institution | OA Journals |
| issn | 1947-6108 |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Houston Methodist DeBakey Heart & Vascular Center |
| record_format | Article |
| series | Methodist DeBakey Cardiovascular Journal |
| spelling | doaj-art-bd85cdbf312e4491a9082e4036e648a92025-08-20T02:22:19ZengHouston Methodist DeBakey Heart & Vascular CenterMethodist DeBakey Cardiovascular Journal1947-61082021-10-01173182310.14797/mdcvj.516560Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial MassKent Swimley0https://orcid.org/0000-0002-4835-6642Hilda M. Gonzalez-Bonilla1https://orcid.org/0000-0002-1879-6647Alpana Senapati2https://orcid.org/0000-0002-5525-4038Karla M. Kurrelmeyer3https://orcid.org/0000-0001-5685-3879Houston Methodist Hospital, Houston, TexasHoward University Hospital, Washington, DCIntermountain Heart Institute Cardiology-Intermountain Medical Center, Murray, UtahHouston Methodist Hospital, Houston, Texas; Houston Methodist DeBakey Cardiology Associates, Houston, TexasA 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.https://account.journal.houstonmethodist.org/index.php/up-j-mdbcj/article/view/516micronodular thymomalymphoid stromamediastinal mass |
| spellingShingle | Kent Swimley Hilda M. Gonzalez-Bonilla Alpana Senapati Karla M. Kurrelmeyer Micronodular Thymoma with Lymphoid Stroma: A Mediastinal Mass Masquerading as a Pericardial Mass Methodist DeBakey Cardiovascular Journal micronodular thymoma lymphoid stroma mediastinal 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 | micronodular thymoma lymphoid stroma mediastinal mass |
| url | https://account.journal.houstonmethodist.org/index.php/up-j-mdbcj/article/view/516 |
| work_keys_str_mv | AT kentswimley micronodularthymomawithlymphoidstromaamediastinalmassmasqueradingasapericardialmass AT hildamgonzalezbonilla micronodularthymomawithlymphoidstromaamediastinalmassmasqueradingasapericardialmass AT alpanasenapati micronodularthymomawithlymphoidstromaamediastinalmassmasqueradingasapericardialmass AT karlamkurrelmeyer micronodularthymomawithlymphoidstromaamediastinalmassmasqueradingasapericardialmass |