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长骨骨干尤文氏肉瘤(肉眼)

尤文氏肉瘤。这种原发性骨肿瘤主要见于儿童与青少年的长骨骨干,稍多见于男性。可见不规则的从灰色到红色再到棕色的肿瘤块正穿透皮质。最右侧可见正常的黄骨髓。

尤文氏肉瘤:长骨骨干(肉眼) 高倍镜

This is Ewing's sarcoma. This primary bone tumor mainly occurs in the diaphysis of long bones of children and young adults. There is a slight male predominance. As seen here, the irregular tan to red to brown tumor mass is breaking through the cortex. More normal fatty marrow is seen at the far right.


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