孤立性肺结节：良性与恶性对比.VIP免费

SolitarypulmonarynodSolitarypulmonarynodule:benignversusmalule:benignversusmalignantignant孤立性肺结节：良性与恶孤立性肺结节：良性与恶性对比性对比ThedifferentialdiagnosisofasolitarypulThedifferentialdiagnosisofasolitarypulmonarynoduleisbroadandmanagementdependmonarynoduleisbroadandmanagementdependsonwhetherthelesionisbenignormalignasonwhetherthelesionisbenignormalignant.nt.孤立性肺结节的鉴别诊断是很多的，处理方法依赖孤立性肺结节的鉴别诊断是很多的，处理方法依赖于该病变是良性还是恶性于该病变是良性还是恶性InthisoverviewwewilldiscusssomeoftheInthisoverviewwewilldiscusssomeofthenewfeaturesthatcanhelptodifferentiatenewfeaturesthatcanhelptodifferentiatebetweenbenignandmalignantnodulesbasedubetweenbenignandmalignantnodulesbaseduponCTandPET-CTfindings.ponCTandPET-CTfindings.在此篇文章，我们着重讨论下一些有助于鉴别良恶在此篇文章，我们着重讨论下一些有助于鉴别良恶性结节的新特征，此特征是基于性结节的新特征，此特征是基于CTCT与与PET-CTPET-CT的检的检查结果查结果CT:benignversusCT:benignversusmalignantmalignantCalcificationCalcificationSizeSizeGrowthGrowthShapeShapeMarginMarginAirBronchogramsignAirBronchogramsignSolidandGround-glasscomponentsSolidandGround-glasscomponentsContrastenhancementContrastenhancementCT:CT:良性与恶性良性与恶性钙化钙化大小大小生长速度生长速度形状形状边缘边缘支气管含气征支气管含气征实性或磨玻璃样实性或磨玻璃样增强特征增强特征CalcificationCalcification钙化钙化Diffuse,central,laminatedorpopcornDiffuse,central,laminatedorpopcorncalcificationsarebenignpatternsofcalcificationsarebenignpatternsofcalcification.calcification.弥漫性，中心性，分层，爆米花钙化是良性弥漫性，中心性，分层，爆米花钙化是良性钙化，钙化，ThesetypesofcalcificationareseenThesetypesofcalcificationareseeningranulomatousdiseaseandhamartomingranulomatousdiseaseandhamartomasas这些形式的钙化最常见于错构瘤、肉芽肿这些形式的钙化最常见于错构瘤、肉芽肿性病变性病变TheexceptiontotheruleaboveiswhenpatientsTheexceptiontotheruleaboveiswhenpatientsareknowntohaveaprimarytumor.areknowntohaveaprimarytumor.ForinstancethediffusecalcificationpatterncaForinstancethediffusecalcificationpatterncanbeseeninpatientswithosteosarcomaorchondrnbeseeninpatientswithosteosarcomaorchondrosarcoma.osarcoma.SimilarlythecentralandpopcornpatterncanbeSimilarlythecentralandpopcornpatterncanbeseeninpatientswithGI-tumorsandpatientswhoseeninpatientswithGI-tumorsandpatientswhopreviouslyhadchemotherapy.previouslyhadchemotherapy.一些病人有原发肿瘤病史，可以表现为良性钙化一些病人有原发肿瘤病史，可以表现为良性钙化例如骨肉瘤、软骨肉瘤可以表现弥漫性钙化。例如骨肉瘤、软骨肉瘤可以表现弥漫性钙化。胃肠间质瘤的病人化疗后可以表现为中心性或苞米花钙胃肠间质瘤的病人化疗后可以表现为中心性或苞米花钙化。化。SizeSize大小大小Asolitarypulmonarynodule(SPN)isdefinedasasiAsolitarypulmonarynodule(SPN)isdefinedasasingleintraparenchymallesionlessthan3cminsizengleintraparenchymallesionlessthan3cminsizeandnotassociatedwithatelectasisorlymphadenopatandnotassociatedwithatelectasisorlymphadenopathy.hy.Alesiongreaterthan3cmindiameteriscalledamAlesiongreaterthan3cmindiameteriscalledamass.ass.孤立性结节定义为小于孤立性结节定义为小于3cm3cm，不伴有肺不张、淋巴结转移，，不伴有肺不张、淋巴结转移，大于大于3cm3cm的为肿块的为肿块Thisdistinctionismade,becauselesionsgreaterthThisdistinctionismade,becauselesionsgreaterthan3cmareusuall...