Teratoma Associated with Endodermal Sinus Tumor
1993
A 3-1/2-year-old girl was diagnosed as having a mediastinal endodermal sinus tumor with pulmonary, bony, and hilar lymph node metastases. Following 7 months of treatment with chemotherapy, thoracic CT (computerized tomogram) scan showed the presence of a residual mass. Upon further surgical exploration the residual mass, which was found to be intrapericardial and arising from the ascending aorta, was resected. This second lesion was shown to be a benign cystic teratoma.The combination of an intrapericardial teratoma and a mediastinal endodermal sinus tumor in a female child is probably unique. The possible etiology for the combination of these two pathologies is discussed.
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