Key result
Neoadjuvant chemotherapy plus complex surgical resection successfully resolves severe mediastinal tumor SVC obstruction.
Why the study?
Primary mediastinal germ cell tumors are rare extragonadal neoplasms that may present with serious compressive cardiopulmonary complications such as superior vena cava obstruction and malignant pericardial effusion requiring multidisciplinary management.
Case Report (n=1)
No
This case highlights that advanced anterior mediastinal germ cell tumors with major vascular invasion and impending cardiac tamponade can be successfully managed through neoadjuvant chemotherapy followed by complex surgical resection and SVC reconstruction.
Supports multimodal management of mediastinal germ cell tumors with SVC obstruction; hypothesis-generating for broader adoption pending larger series.
Primary mediastinal germ cell tumors (PMGCTs) are rare extragonadal neoplasms that most commonly affect young men and may present with compressive cardiopulmonary complications due to their location in the anterior mediastinum. Superior vena cava obstruction and malignant pericardial effusion are serious manifestations that require prompt recognition and coordinated multidisciplinary management. We report a case of a 30-year-old male patient with a large anterior mediastinal germ cell tumor causing superior vena cava (SVC) obstruction and malignant pericardial effusion with impending cardiac tamponade. The patient underwent chemotherapy followed by successful surgical resection with SVC reconstruction using a polytetrafluoroethylene (PTFE) graft under cardiopulmonary bypass. This case underscores the diagnostic complexity of mediastinal germ cell tumors and highlights the importance of multidisciplinary care when these tumors invade or compress great vessels and adjacent cardiac structures.
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Obied et al. (2026) conducted a case report in Primary mediastinal germ cell tumor (n=1). Neoadjuvant chemotherapy followed by surgical resection and SVC reconstruction was evaluated. A large anterior mediastinal germ cell tumor causing superior vena cava obstruction and impending cardiac tamponade was successfully managed with neoadjuvant chemotherapy followed by complex surgical resection and SVC reconstruction using a PTFE graft.
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