CTICasesRetroperitoneal Germ Cell Tumor Metastasis
Imaging findings
Chest radiograph and CT show a new, lobulated soft-tissue mass in the aortopulmonary (AP) window, representing a growing lymph node metastasis. The patient has a history of retroperitoneal non-seminomatous germ cell tumor.
Key takeaways
Germ cell tumors can metastasize to mediastinal lymph nodes, including the AP window. Serial chest radiographs showing new mediastinal contours or bulges are important screening tools in cancer patients, and growing lesions warrant CT evaluation for recurrence.
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