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Metastatic Ewing sarcoma to the heart simulating adriamycin cardiotoxicity.

A 20-year-old man with metastatic Ewing Sarcoma developed severe congestive heart failure. Because he had been treated with a large amount of Adriamycin, the diagnosis was initially thought to be Adriamycin cardiotoxicity. However, ante- and post-mortem studies revealed the presence of massive cardiac metastases. At post-mortem, there was no evidence of Adriamycin cardiotoxicity. This case emphasizes that cardiac metastases must be considered in the differential diagnosis of heart failure in patients treated with Adriamycin.