节细胞神经瘤的CT、MRI表现与病理相关性研究

发布时间：2018-07-17 01:14

【摘要】：目的分析节细胞神经瘤(GN)的CT、MRI表现特征,提高对其诊断的准确性。方法回顾性分析23例经手术与病理证实的GN病例的CT及MRI表现,并与组织病理学相对照。结果本组GN均为单发病变,发生于纵隔12例(52.2%),肾上腺5例(21.7%),腹膜后间隙3例(13.0%),颈动脉鞘区2例(8.7%),蝶骨嵴1例(4.3%);多见于小儿及青壮年,年龄5~68岁(中位年龄19岁),年龄≤25岁者15例(65.2%);表现为边界清楚的梭形或卵圆形肿块,肿块多具有"见缝就钻"的生长特性。17例CT平扫呈均匀稍低于肌肉密度11例(64.7%),密度不均匀者6例(35.3%),其内出现小点状钙化1例(5.9%),"蛋壳"样钙化1例(5.9%);增强扫描无明显强化9例(52.9%),渐进性强化8例(47.1%)。13例MRI平扫T1WI以均匀等/低信号为主;T2WI呈不均匀高/等/低或混杂信号,并出现"旋涡征"表现;增强扫描均呈渐进性强化。CT或MR见滋养动脉者6例(26.1%),肿块内见血管穿行者17例(73.9%),呈"血管漂浮征",23例肿块均有"血管贴边征"。结论 GN的CT及MRI表现具有一定特征性,对其诊断及鉴别诊断具有较高的临床价值。
[Abstract]:Objective to analyze the CT and MRI features of the ganglion cell neuroma (GN) and improve the accuracy of its diagnosis. Methods the CT and MRI manifestations of 23 cases of GN confirmed by surgery and pathology were retrospectively analyzed and compared with histopathology. Results the group of GN were single lesions, 12 cases (52.2%), 5 adrenal cases (21.7%), and 3 cases of retroperitoneal space (3 cases). 13%) 2 cases (8.7%) of carotid sheath and 1 cases (4.3%) of sphenoid ridge, more common in children and young adults, age 5~68 years (median age 19), 15 cases (65.2%) of age less than 25 years old, with clear spindle or oval masses with a clear boundary, and most of the masses with "see the drill" growth characteristics,.17 CT plain scan is even slightly lower than muscle density 11 cases (64.7%), close to muscle density. In 6 cases (35.3%), there were 1 cases of small dot calcification (5.9%), 1 cases of eggshell calcification (5.9%), 9 cases of enhanced scan (52.9%), 8 (47.1%) progressive enhancement (47.1%).13 MRI plain scan T1WI with homogeneous / low signal; T2WI was uneven / equal / low or mixed signal, and "vortex sign" appeared; enhanced scan showed gradually. The progressive enhancement of.CT or MR was found in 6 cases (26.1%) of the trophoblastic artery, 17 cases (73.9%) of vascular traveler in the lump, "vascular floating sign", and "vascular border sign" in 23 cases. Conclusion the CT and MRI manifestations of GN have some characteristic features, which have high clinical value for the diagnosis and differential diagnosis.
【作者单位】：广东省潮州市人民医院放射科;广东省人民医院放射科;
【分类号】：R445.2;R730.44;R739.4

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