谢谢各位的建议、意见及指正
A59-year-oldmanpresentswithdiminishedsenseoftasteandsmellandnasalcongestion.
59岁男性患者出现味觉和嗅觉减退和鼻塞。
Anexpansile,lobulated,mildlyhyperattenuatingsofttissuemassisseenatleftnasalcavity,extendingintracraniallyintothefloorofanteriorcranialfossa.MRIofsinonasalregionwasperformed
左侧鼻腔可见一膨胀性、分叶状、稍高密度软组织肿块，向颅内延伸至前颅窝底部，后行鼻窦区MRI检查。
(A–C)MRIofmaxillofacialregionshowsalarge,expansile,lobulatedsinonasalmasswithintermediatehighT1signal,heterogeneousbutpredominantlyintermediatetohighT2signal,andpatchypostcontrastenhancementextendsintotheregionofolfactorygroove.
(A-C)颌面部MRI示鼻窦内一大的、膨胀性的分叶状肿块，呈中等高T1信号，T2信号不均匀，以中-高信号为主，增强后呈片状强化，可见肿块延伸至嗅沟区域。
DifferentialDiagnosis
?Esthesioneuroblastoma:Adumbbell-shapedmasswithawaistatcribriformplate,inferiorextensionatuppernasalcavity,andsuperiorintracranialextensionwithperipheraltumorcystattumor–brainmarginmostlikelyrepresentsanesthesioneuroblastoma.
?Sinonasalsquamouscellcarcinoma:Itismore
