Ivory vertebra sign

Author：Dr Sachintha Hapugoda◉ and Radswiki et al.

The ivory vertebra sign refers to diffuse and homogeneous increase in opacity of a vertebral body that otherwise retains its size and contours, and with no change in the opacity and size of adjacent intervertebral discs.

象牙椎征是指椎体弥漫和均匀的密度增高，而椎体的大小和形状无变化，并且相邻的间盘的密度和大小没有变化。

Pathology

Aetiology

The cause for an ivory vertebra depends on the age of the patient .

病因

象牙椎的病因与患者的年龄相关。

Paediatric（儿童）

lymphoma 淋巴瘤
osteosarcoma 骨肉瘤
osteoblastoma 骨母细胞瘤
metastatic disease 转移性病变

neuroblastoma 神经母细胞瘤
medulloblastoma 髓母细胞瘤
Ewing sarcoma (rare) 尤因肉瘤（罕见）

Adult（成人）

osteoblastic metastases 成骨性转移

prostate cancer 前列腺癌
breast cancer 乳腺癌

lymphoma 淋巴瘤
Paget disease of bone （骨）佩吉特病
tuberculous spondylitis 脊柱结核
haemangioma 血管瘤

病例图片：

Breast cancer metastasis

Ivory vertebrae (lymphoma)

Ewing sarcoma

prostate cancer

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