Abstract
BackgroundCardiac myxoma is the most common type of primary cardiac tumor, and thymic carcinoid is a rare neuroendocrine tumor. No previous reports have described surgical management of concomitant occurrence of these neoplasms. We report a case of simultaneous surgical resection in a patient with coexisting cardiac myxoma and atypical thymic carcinoid.Case presentationA 44-year-old Japanese woman underwent chest roentgenography revealing an abnormality in the mediastinum. Computed tomography revealed a 100 mm mass in the anterior mediastinum and also a 30 mm mass in the left atrium. The mediastinal tumor was diagnosed as atypical carcinoid by biopsy. Having completed resection of atypical thymic carcinoid, cardiac mass was successfully resected with careful consideration of minimizing operation time and optimizing patient safety and oncological treatment. The histopathological diagnosis of the cardiac mass was myxoma. No adjuvant chemotherapy was administered, and no recurrence was seen as of the 45 month follow-up.ConclusionsThe simultaneous surgery of cardiac myxoma and atypical thymic carcinoid was feasible and effective. To the best of our knowledge, this is the first case report to describe one-stage treatment of these neoplasms.
Highlights
Cardiac myxoma is the most common type of primary cardiac tumor, and thymic carcinoid is a rare neuroendocrine tumor
Cardiac myxoma is the most common type of primary cardiac tumor in adults, and warrants complete surgical resection owing to the risks of sudden death and embolism [1]
We report a case of simultaneous resection of cardiac myxoma and atypical thymic carcinoid via mediastinal sternal incision
Summary
Anterior mediastinal tumors are often found incidentally during scrutiny of other diseases, but few cases have described surgical treatment of concomitant cardiac and mediastinal tumors. We report a case of simultaneous resection of cardiac myxoma and atypical thymic carcinoid via mediastinal sternal incision. The patient had a medical history of hypertension and uterine myoma, and she was taking angiotensin II receptor blocker and Matsushima et al J Med Case Reports (2021) 15:491 calcium channel blocker. The patient underwent simultaneous resection of the cardiac myxoma and atypical thymic carcinoid via a midline sternotomy. Histopathological examination of the resected tumor revealed atypical thymic carcinoid and cardiac myxoma (Fig. 3A, B). The patient was followed up regularly with physical examination, chest roentgenography, echocardiography, and CT scan every 6 months, and no recurrence was seen as of the 45 month follow-up
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