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- W2353673771 abstract "Objective:To analyse the MRI features of intraparenchymal ependymoma and to improve the dianostic acuracy of it.Methods:The pre-and post-contrast MR images of 12 cases with intraparenchymal ependymoma confirmed by surgery and pathology were analyzed retrospectively.Results:Among all the 12 cases,10 lesions located at the supratentorial cerebrum,5 of which located at thalamus,2 frontal lobe(1 of which involved bifrontal lobes through callosum),1 temporal lobe,1 frontotemporal lobe and 1 involved the junctional zone between parietal lobe and occipital lobe.Other 2 lesions located in posterior fossa ependymoma,including: cerebellum(1 case) and vermis(1 case).Among them,10 cases were closed to ventricle.Seven cases of intraparenchymal ependymoma were solid,appearing hypo-intense singals on T1-weighted image and hyper-intense singals on T2-weighted image,in which a blood area was reveled in 2 case and many liquified cystic areas in 4 cases.Five cases were partial cystic type.The cyst fluid was CSF-like with low intensity on T1-weighted image,bright high intensity on T2-weighted image and low intensity on T2 FLAIR;The parenchyma of the tumors presented iso-intense or hypo-intense singals on T1-weighted image and hyper-intense singals on T2-weighted image.After adiministration of contrast medium,the tumors demonstrated hyperdense with marked inhomogeneous enhancement.Conclusion:Intraparenchymal ependymoma frequently located at supratentorial cerebrum,usually located at the trigone of lateral ventricle,most appearing solide with slighted peritumoral edema.Although the MR findings are somehow characteristic,it is difficult to get definate diagnosis before operation." @default.
- W2353673771 created "2016-06-24" @default.
- W2353673771 creator A5072081576 @default.
- W2353673771 date "2011-01-01" @default.
- W2353673771 modified "2023-09-23" @default.
- W2353673771 title "MR diagnosis and differential diagnosis of intraparenchymal ependymoma" @default.
- W2353673771 hasPublicationYear "2011" @default.
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