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1、Neuroradiology/HeadandNeckImaging•OriginalResearchAndersonetal.SonographyofNodularHashimotoThyroiditisNeuroradiology/HeadandNeckImagingOriginalResearchHashimotoThyroiditis:Part1,SonographicAnalysisoftheNodularFormofHashimotoThyroiditisLaurenAnderson1OBJECTIVE.Thepurp
2、oseofthisarticleistoanalyzethesonographicappearanceofWilliamD.Middleton1nodularHashimotothyroiditis.SharleneA.Teefey1SUBJECTSANDMETHODS.Aspartofanongoingmultiinstitutionalstudy,patientsCarlC.Reading2whounderwentultrasoundexaminationandfine-needleaspirationofoneormore
3、thyroidJillE.Langer3noduleswereanalyzedformultiplepredeterminedsonographicfeatures.Patientscompleteda4questionnaire,includinginformationaboutthyroidfunctionandthyroidmedication.PatientsTerryDesser(n=61)withfine-needleaspirationcytologicresultsconsistentwithnodularHas
4、himotothy-MargaretM.Szabunio5roiditis(n=64)wereincludedinthestudy.CharlesF.Hildebolt1RESULTS.Themean(±SD)diameterofnodularHashimotothyroiditiswas15±7.33SusanJ.Mandel3mm.NodularHashimotothyroiditisoccurredasasolitarynodulein36%(23/64)ofcasesandJohnJ.Cronan6inthesettin
5、goffiveormorenodulesin23%(15/64)ofcases.Fifty-fivepercent(35/64)ofthecasesofnodularHashimotothyroiditisoccurredwithinasonographicbackgroundofdiffuseAndersonL,MiddletonWD,TeefeySA,etal.Hashimotothyroiditis,and45%(29/64)ofcasesoccurredwithinnormalthyroidparenchy-ma.The
6、sonographicappearancewasextremelyvariable.Itwasmostcommonlysolid(69%[42/61]ofcases)andhypoechoic(47%[27/58]ofcases).Twentypercent(13/64)ofnoduleshadcalcifications(sevenwithnonspecificbrightreflectors,fourwithmacrocalcifications,andthreeeggshell),and5%(3/64)ofnodulesh
7、adcolloid.Twenty-sevenpercent(17/64)ofnod-uleshadahypoechoichalo.Themarginswerewelldefinedin60%(36/60)andilldefinedin40%(24/60)ofnodules.OnDoppleranalysis,35%(22/62)ofnoduleswerehypervascular,42%(26/62)wereisovascularorhypovascular,and23%(14/62)wereavascular.Keywords
8、:Hashimotothyroiditis,thyroidcytology,CONCLUSION.ThesonographicfeaturesandvascularityofnodularHashimotothy-thyroidnodules,thyroidul
