摘要
目的探讨脊柱区副神经节细胞瘤的影像表现,以提高对此少见肿瘤的认识。方法对11例临床病理确诊的副神经节细胞瘤患者的影像表现进行回顾性分析,总结其相对特征的表现。结果 11例脊柱副神经节细胞瘤中7例位于T_（12）~S_1水平椎管内硬膜下,肿瘤呈圆形或椭圆形,边界清晰,5例肿瘤周围或内部可见血管影,2例可见含铁血黄素沉积。4例位于T_6、T_（6~7）、L_2和S_（1~2）硬膜外,表现为溶骨骨质破坏或成骨,2例骨破坏区内可见血管影;T_1WI肿瘤呈等信号（7例）、低信号（3例）或高信号（1例）;T）2WI呈等信号（5例）、低信号（1例）、高信号（2例）或混杂信号（3例）;9例均明显强化,其中4例呈均匀强化,5例不均匀强化。结论脊柱区的副神经节细胞瘤可位于椎管内硬膜下或硬膜外,椎管内硬膜下者以腰椎管多见,肿瘤血供丰富,增强扫描均明显强化;肿瘤周围或内部血管影相对具有特征性;硬膜外的副节瘤表现为溶骨骨破坏或成骨。
Objective To explore the imaging appearances of paraganglioma in the spine and improve the awareness of this rare tumor. Methods To retrospectively analyze the imaging appearances of 11 cases that had been confirmed by clinical and pathological results and find the characteristics of this tumor. Results Among the 11 cases,7 cases were located in the intraspinal compartment of vertebral levels T_（12）- S_1 and they were round or oval with clear margins. Vascularity could be seen around five tumors and a hemosiderin deposit was seen in two cases. Four cases of spinal paraganglioma were distributed at the vertebral levels T_6、T_（6- 7）、L_2 and S_（1-2） epidural space and showed lytic or osteoblastic configuration. Spinal paragangliomas showed iso-intensity（ 7 cases）,hypo-intensity（ 3 cases） or hyper-intensity（ 1 case） on T_1WI and iso-intensity（ 5 cases）,hypo-intensity（ 1 case）,hyper-intensity（ 2 cases） or heterogenous intensity（ 3 cases） on T_2WI. Nine tumors showed significant enhancement on post-contrast scan,among them 4 showed homogenous and 5 heterogeneous enhancements. Conclusion Spinal paraganglioma was mainly located in the intraspinal subdural or epidural space and intraspinal subdural paraganglioma was commonly seen in the lumbar spinal canal and this kind of tumor was hypervascular and it showed significant enhancement on post-contrast imaging. Vascularity was seen around the tumor. Paragangliomas located in epidural space may appear as lytic or osteoblastic bone destruction.
出处
《临床放射学杂志》
CSCD
北大核心
2016年第12期1866-1870,共5页
Journal of Clinical Radiology
