Puljic S, Batnitzky S, Yang W C, Schechter M M
Radiology. 1975 Oct;117(1):89-91. doi: 10.1148/117.1.89.
Intramedullary metastases to the spinal cord of non-neurogenic origin are exceedingly rare, comprising fewer than 1.6% of all metastases affecting the spinal canal and its contents. Plain films are normal. Irregular fusiform widening of the spinal cord is the most common myelographic feature, although nodularity is also present. Complete blockage is very rare. The authors describe the radiological features in 4 cases of intramedullary metastases of non-neurogenic origin. The differential diagnosis is discussed, and some pathogenetic mechanisms are postulated. It is important to recognize intramedullary metastases in order to plan the proper management.
非神经源性起源的脊髓髓内转移极为罕见，在所有影响椎管及其内容物的转移瘤中占比不到1.6%。平片表现正常。脊髓不规则梭形增宽是最常见的脊髓造影特征，不过也会出现结节状表现。完全梗阻非常罕见。作者描述了4例非神经源性起源的脊髓髓内转移瘤的影像学特征。讨论了鉴别诊断，并提出了一些发病机制。认识到脊髓髓内转移瘤对于制定恰当的治疗方案很重要。
