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MRIfeaturesofgemistocyticastrocytoma / 实用放射学杂志
Journal of Practical Radiology ; (12): 357-361,366, 2019.
Artículo en Chino | WPRIM | ID: wpr-743536
ABSTRACT
Objective ToexploretheMRIfeaturesanddifferentialdiagnosisofgemistocyticastrocytoma(GemA).Methods The MRIfeaturesof10casesofGemAprovedbysurgeryandpathologywereinvestigatedretrospectively(thelocationoftumor,tumor shape,boundary,signalandenhancement)andtheliteraturewasreviewed.Results All10casesofGemA weresupratentorialand solitary.Ofthese10cases,7caseswerelocatedinthefrontallobe,5casesinthetemporallobe,6casesinmultiplelobesandinvaded theoppositebraintissuesthroughcorpuscallosum.8casesweresolidGcystic,8casespresentedwithunclearboundary,only2cases hadclearboundary.Therewasnoedemaormildedemain7casesandobviousedemain3cases.Thesolidpartoftumorswereisointense orslighthypointenseonT1WI,only1caseshowedhighintensityonT1WI,isointenseorslighthyperintenseonT2WI.CTsuggested calcificationin2cases.6casesweremildlyenhanced,4casesweremarkedlyenhanced.MRSshowed(n=4)thatCHopeakwasmildly ormoderatelyincreased,NAApeakwassignificantlyreduced,theaverageratioofCho/NAA was2.91.DWIshowedhyperintenseor slighthyperintense(n=3),theADCaveragevalueoftumorROIwasabout(1.150±0.081)×10-3 mm2/s.1caseofSWIsequence showedthickeningandcircuitousvascularshadow.Conclusion AsMRIofGemAischaracterizedbyhighandlowgradegliomas,the preoperativediagnosisisdifficult.Combiningenhancementwithfunctionalexamination,itisexpectedtoimprovetheaccuracyofpreoperative diagnosisofGemA.

Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Idioma: Chino Revista: Journal of Practical Radiology Año: 2019 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Idioma: Chino Revista: Journal of Practical Radiology Año: 2019 Tipo del documento: Artículo