In adults with extraskeletal Ewing sarcoma, primary tumors typically present as large soft-tissue masses and most frequently metastasize to lymph nodes.
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May inform imaging protocols for suspected EES; leaves open prospective validation of metastasis patterns.
Primary tumors of EES can occur anywhere and mostly manifest as large and bulky, soft-tissue masses. Lymph nodes are the most frequent metastasis sites.
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Huh et al. (2015) studied this question.
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