鞍上区实性肿瘤CT和MRI鉴别诊断

发布时间：2018-04-13 08:46

本文选题：鞍上区 + 肿瘤　；参考：《临床放射学杂志》2017年05期

【摘要】：目的探讨鞍上区实性肿瘤CT和MRI特征。方法回顾性分析35例鞍上区实性肿瘤CT和MRI表现,其中12例脑膜瘤,2例颗粒细胞瘤,1例中枢神经细胞瘤,1例脊索样胶质瘤,2例颅咽管瘤,5例生殖细胞瘤,7例视神经胶质瘤,2例淋巴瘤,3例转移瘤。结果脑膜瘤CT呈等密度影,MRI呈等T1、等T2信号,均匀明显强化,可有"脑膜尾征";颗粒细胞瘤与鞍隔及垂体柄解剖关系密切,SWI见低信号出血坏死灶;脊索样胶质瘤呈持续性明显强化,可有钙化;中枢神经细胞瘤,MRI呈等T1、等T2信号,增强后明显强化;颅咽管瘤呈等T1、稍长T2信号,明显强化;生殖细胞瘤增强扫描明显强化,SWI见多发静脉血管及微出血灶;视神经胶质瘤沿视神经生长;淋巴瘤及转移瘤多呈结节状强化。结论鞍上区实性肿瘤CT和MRI表现具有一定特征性。
[Abstract]:Objective to investigate the CT and MRI features of solid tumors in suprasellar region.Methods CT and MRI findings of 35 cases of solid tumors in suprasellar region were retrospectively analyzed.There were 12 cases of meningioma, 2 cases of granulosa cell tumor, 1 case of central nervous cell tumor, 1 case of chordoid glioma, 2 cases of craniopharyngioma, 5 cases of germ cell tumor, 7 cases of optic glioma, 2 cases of lymphoma and 3 cases of metastasis.Results MRI showed iso-T _ 1, iso-T _ 2 signal intensity, homogeneous enhancement and "meningeal tail sign" on CT and MRI, and hypointense hemorrhage necrosis was found in granulosa cell tumor, Sella sellae septum and pituitary stalk.The spinal cord glioma showed continuous enhancement and calcification; MRI showed isobaric T 1, isoT2 signal intensity, enhancement after enhancement; craniopharyngioma showed iso-T 1, slightly longer T 2 signal intensity, obvious enhancement;The enhanced scanning of germinoma showed multiple venous vessels and microhemorrhage foci, glioma of optic nerve grew along the optic nerve, and lymphoma and metastasis showed nodular enhancement.Conclusion CT and MRI features of solid tumors in suprasellar region are characteristic.
【作者单位】：南方医科大学附属南海医院放射科;广东同江医院放射科;
【基金】：佛山市十三五医学重点专科和特色专科建设项目(编号:FSTSZK011)
【分类号】：R445.2;R730.44;R739.4

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