颅骨少见良性病变的影像诊断分析

发布时间：2018-04-21 01:35

本文选题：磁共振成像 + 体层摄影术　；参考：《放射学实践》2015年12期

【摘要】：目的:探讨CT及MRI对颅骨良性病变的诊断价值。方法:回顾性分析13例以骨质破坏为主的颅骨良性病变的CT及MRI表现,并与其病理表现进行对照分析。结果:13例中骨纤维结构不良6例,主要CT表现为局限性小病灶(5例)多呈磨玻璃密度,弥漫性病灶(1例)可见磨玻璃密度及丝瓜络样改变;主要MRI表现为病灶在T1WI及T2WI上均以低信号为主;骨化性纤维瘤3例,主要CT表现为肿瘤呈膨胀性生长,骨皮质破坏不明显,无骨膜反应;巨细胞修复性肉芽肿2例,主要CT表现为病灶内可见多发骨性分隔,MRI上可见病灶呈多房样改变;胆固醇性肉芽肿1例,在T1WI、T2WI及压脂图像上病灶均呈高信号,有一定特征性;动脉瘤样骨囊肿1例,其特征性影像表现为病灶内可见液-液平面。结论:部分颅骨良性病变具有特征性的影像学表现,CT及MRI检查有助于这类病变的诊断及鉴别诊断。
[Abstract]:Objective: to evaluate the diagnostic value of CT and MRI in benign skull lesions. Methods: Ct and MRI findings of 13 cases of skull benign lesions with bone destruction were analyzed retrospectively and compared with pathological findings. Results among the 13 cases, 6 cases had fibrous dysplasia of bone, 5 cases had localized small lesions on CT) and 1 case had diffuse focus. The density of ground glass and the appearance of luffa collate were observed in 1 case. The main MRI findings were low signal intensity on both T1WI and T2WI, 3 cases of ossifying fibroma, CT findings showed that the tumor showed swelling growth, the destruction of bone cortex was not obvious, and there was no periosteal reaction, 2 cases of giant cell repair granuloma, 2 cases of giant cell repair granulomatous tumor, and 2 cases of giant cell repair granuloma. The main CT findings were multiple locular-like lesions on MRI, cholesterol granuloma in 1 case, hyperintense lesions on T1WII-T2WI and fat compression images, and aneurysm-like bone cysts in 1 case. The characteristic image was the liquid-liquid plane in the lesion. Conclusion: Ct and MRI are helpful in the diagnosis and differential diagnosis of some benign skull lesions.
【作者单位】：华中科技大学同济医学院附属同济医院放射学教研室;
【分类号】：R739.41;R730.44

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