The ivory vertebra sign
The ivory vertebra sign
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DOI：
10.1148/radiol.2352021743
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发表时间：
2005-05-01
期刊：
影响因子：
19.7
通讯作者：
Graham, TS
中科院分区：
文献类型：
--
作者：
Graham, TS
象牙椎骨征在成人和儿童中都可以看到。在儿童中，这一发现不太常见，通常是淋巴瘤的结果，通常是霍奇金淋巴瘤。儿童骨肉瘤、转移性神经母细胞瘤、髓母细胞瘤或骨母细胞瘤累及椎体并导致不透明增加的情况更少见（，3，，6，，7）。少数病例尤文肉瘤致密椎体已报告。在这种情况下，虽然肿瘤本身是溶解性的，但反应性骨形成可能异常不透明（，6）。
DISCUSSIONThe ivory vertebra sign can be seen in both adults and children. In children, the finding is much less common and is typically the result of lymphoma, usually Hodgkin lymphoma. Even less frequently, children may have osteosarcoma, metastatic neuroblastoma, medulloblastoma, or osteoblastoma that involves a vertebral body and causes increased opacity (, 3,, 6,, 7). A few cases of Ewing sarcoma with dense vertebral bodies have been reported. In such cases, while the tumor itself is lytic, the reactive bone formation can be exceptionally opaque (, 6).