Résumé
Objective ToinvestigatethevalueofenhancedCTindifferentiatinggastricneuroendocrinetumors (NET)from gastric neuroendocrinecarcinomas(NEC).Methods 34patientswithpathologicallyprovenneuroendocrineneoplasms (NEN)underwent abdomenenhancedCT.Theage,genderandCTfeaturesofthetumorswereanalyzedretrospectively.TheCTfeaturesincludedtumor location,shape,size,homogeneityofdensity,welldefinedserosalsurface,CTvalueofplainandenhancedCT,enhancementpattern, and metastasesoflymphnode.TheevaluatedparameterswerecomparedbetweengastricNETandgastricNECby t testand Fisher exacttest.Results AsignificantdifferenceingenderwasfoundbetweengastricNETandgastricNEC (P＜0.05),however,nosignificant differenceinagewasfound(P＞0.05).Thereweresignificantdifferencesintumorsize,shape,welldefinedserosalsurface,enhancement degreeandenhancementpatterninarterialphasebetweengastricNETandgastricNEC(P＜0.05),however,nosignificantdifferencesin otherparameterswerefound(P＞0.05).Conclusion TheNETofthestomachhascertaincharacteristicsofcontrast-enhancedCT. Theshape,size,welldefinedserosalsurface,degreeofenhancementandenhancementpatterninthearterialphasearevaluablein differentiatinggastricNETfromgastricNEC.