摘要
目的：探讨原发椎管内少见肿瘤的MRI影像学特征，提高对该类疾病的认识。资料与方法：搜集2001～2006年经手术病理证实的12例原发椎管内少见肿瘤的临床资料，进行回顾性分析。结果：发生在椎管内的海绵状血管瘤4例，T2WI呈均匀高信号，其中1例合并椎体血管瘤；淋巴瘤4例，2例呈等T1、长T2信号，另2例呈略短T1或等T1、略长T2信号，2例病变见椎体以及附件破坏；血管脂肪瘤3例，T1WI呈不均匀低到等信号，其内夹杂少量高信号，T2WI以不均匀高信号为主，其中2例病灶内见小点条状流空低信号；原始神经外胚层肿瘤（PNET）1例，病变呈“钳状”包绕脊髓，T1WI和T2WI上均为等信号。以上病变增强扫描均明显强化。结论：MRI对椎管占位病变的定位以及定性有着无可替代的优势，是目前最为可靠的术前检查手段，能充分显示病变与周围组织的关系，但最后确立诊断仍须结合临床及完整的病理资料分析。
Abstract
Objective: To discuss MR characteristic appearance of rare primary tumors in vertebral canal, in order to improve the recognition of these tumors. Materials and Methods: Twelve patients with rare tumors in vertebral canal confirmed by operation and pathologic examination from 2001～2006 were analysed retrospectively. Results: This group included 4 cases of cavernous hemangioma. The mass showed hyperintensity on T2WI. One case was accompanied by hemangiomas of the vertebral body. Lymphoma 4 cases, two cases isointense on T1WI and hyperintense on T2WI. Two cases isointense on T1WI and hyperintense on T2WI. Two cases had spine and spinal accessory part destroyed. Angiolipomas three cases. Heterogeneous low and spot high signal intensity on T1WI. Heterogeneous high signal intensity on T2WI. Two cases had flow void signs within the lesion. Primary neuroectodermal tumor(PNET) one case, It showed clamp shape encircled the adjacent spinal cord. Isointense on T1WI and T2WI. All the above cases showed significant enhancement. Conclusion: MRI is the best method for orientation and specific diagnosis of rare primary tumor in the vertebral canal. It’s the most reliable examination before operation at present, it can display the relationship of tumor with adjacent structure. But correct diagnosis depends on clinical and pathological results.
关键词
椎管 /
肿瘤 /
磁共振成像
Key words
spinal canal /
neoplasms /
magnetic resonance imaging
颜剑豪;江桂华;田军章;郑丽吟;林楚岚;梁联保.
椎管内原发少见肿瘤的MRI表现[J]. 中国临床医学影像杂志. 2007, 18(3): 212-215
YAN Jian-hao;JIANG Gui-hua;TIAN Jun-zhang;ZHENG Li-yin;LIN Chu-lan;LIANG Lian-bao.
MR appearance of rare primary tumors in vertebral canal[J]. Journal of China Clinic Medical Imaging. 2007, 18(3): 212-215
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