名词
中文翻译：伊万肿瘤
同义词：
["Ewing's sarcoma", "Ewing's primitiveneuroectodermal tumor", "Ewing's primitive rhabdomyosarcoma"]
例句：
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1. The patient was diagnosed with arare type of Ewing'ssarcoma.
这名患者被诊断出患有一种罕见的伊万肿瘤。
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2. The treatmentfor Ewing's sarcoma involves surgery and radiation therapy.
伊万肿瘤的治疗包括手术和放疗。
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3. Ewing's sarcoma is amalignant tumor that can spread toother parts of the body.
伊万肿瘤是一种恶性肿瘤，可以扩散到身体的其他部位。