ABSTRACT
Objective ToexploretheMRIperformanceofpapillarythyroidcarcinomawithhobnailfeatures(HPTC)andthedifferential diagnosisfromclassicpapillarythyroidcarcinoma(CPTC).Methods Dataof93patientswithconfirmedPTCandMRIexamination oneweekbeforesurgerywereretrospectivelycollected.Thedifferencesoftheage,sex,tumorsize,ADCvaluesand MRIfeaturesof HPTCandCPTCweredetermined.Results 10HPTCand78CPTCwereincludedinthisstudy.ThefrequencyofT2WIsignificantly highsignal,segmentationlinearlowsignal,lacesignandgyrus-likestructureofHPTCwassignificantlyhigherthanthatofCPTC (P=0.000).ComparedtoCPTC,HPTCshowedmoreirregularshape(P=0.005),largervolume(P=0.025),moremixedT2WI andDWIsignals(P=0.002,0.028,respectively),higherADCvalues(P=0.019),anddelayedmass-likeenhancement(P=0.041). Conclusion HPTClesionshavelargervolume,irregularshape,mixedT2WIsignals,mixedDWIsignalsandhigherADCvalues. Significantlyhighsignal,segmentationlinearlowsignal,lacesignandgyrus-likestructurearecommonlyobservedonT2WI.Delayed mass-likeenhancementpatternismorecommon.ThesecharacteristicscouldcontributetothediagnosisofHPTC.
ABSTRACT
AIM:Todiscusstherelationshipbetweensmallubiquitin-relatedmodifier4(SUMO4)expression and papillary thyroid carcinoma (PTC).METHODS:The mRNA and protein levels of SUMO4 in PTC and normal thyroid tissues were determined by the methods of real-time PCR, Western blot and immunohistochemistry .The relationship be-tween SUMO4 expression and clinicopathologic parameters in PTC was evaluated .RESULTS:The results showed that both the mRNA and protein levels of SUMO 4 expression in PTC were obviously higher than those in normal thyroid tissues ( P<0.01).CONCLUSION:The high level of SUMO4 expression in PTC suggests that SUMO4 plays an important role in PTC development and it is probably a molecular mechanism of PTC .