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股骨动脉瘤性骨囊肿(肉眼)

动脉瘤性骨囊肿的肉眼外观。受累骨通常为长骨干骺端或椎体脊,X线显示为典型的气囊化或动脉瘤样膨胀。大体上,围绕充满血的囊腔有着丰富的肿瘤聚集物。血管破坏出血形成的含血铁黄素使一些包囊染成褐色。

动脉瘤性骨囊肿:股骨(肉眼) 低倍镜 高倍镜

The gross appearance of an aneurysmal bone cyst is shown here. The radiographic appearance is typically that of ballooning, or aneurysmal dilation, of the affected bone--usually the metaphysis of a long bone or dorsal vertebral body. Grossly, there are fleshy aggregates of tumor surrounding cystic spaces filled with blood. The breakdown of the blood into hemosiderin has led to brownish staining of some of the cysts seen here.


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