自身免疫性胰腺炎的CT诊断

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1、万方数据CTdiagnosisofautoimmunepancreatitisYEFeng。ZHAOXin-ming’，SHISu—sheng，ZHOUChun一删(DepartmentofDiagnosticRadiology，CancerHospital，ChineseAcademyofMedicalSciences，PekingUnionMedicalCollege，Beijing100021，China)·t223·◆◆◆腹部影像学[-Abstract]ObjectiveToinvestigatetheimagingfindingsofaut

2、oimmunepancreatitis(AIP)．MethodsTheclinicaldataof6AIPpatientswereretrospectivelyreviewed．Plainandcontrast-enhanceddualphasescanwereperformedfor5patients．Delayedenhancedscanwereperformedfor3ofthe5patients．PET—CTscanwereperformedfor1ofthe5patientsandanotherpatient．Allimagingdataw

3、asreviewed，focusingontheshape，size。parenchymadensityandenhance—mentpatternsofthepancreas。aswellasthebiliaryandpancreaticducts，pancreaticfat，vessels，retroperitonealspaces，lymphnodes．Results66．7％(4／6)ofthepatientsshoweddiffuseswellingofthepancreasonand33．3％(2／6)hadfocalenlargemen

4、tofpancreaticbodyandtail．66．7％(4／6)ofthepatientsshowedcapsule-likerimaroundthepancreaticpa—renchyma．Swelledpancreasshowedhomogeneousenhancementonportalvenousordelayedphaseimagesinall5patients．revealedpancreaticductstricturesinallpatientsanddistalcommonbileductstricturein33．3％(2

5、／6)ofthepatients．Lymphadenopathywasseenin33．3％(2／6)ofthepatients．All2patientsshowedintenseuptakeofswellingpancreasonPET／CT．ConclusionThetypicalimagingfeaturesofAIPishelpfulforthediagnosisofAIPandcanavoidunnecessaryoperation．Contrast—enhancedscanatarterial，portalvenousanddelayed

6、phasesdoanimportantroleindiagnosisofAIP．[-Keywords]Autoimmunepancreatitis；Tomography，X-raycomputed自身免疫性胰腺炎的CT诊断叶枫，赵心明’，石素胜，周纯武(中国医学科学院北京协和医科大学肿瘤医院影像诊断科，北京100021)[摘要]目的探讨自身免疫性胰腺炎(ALP)的CT表现。方法回顾性分析6例AIP患者的临床资料，5例行螺旋CT平扫+增强扫描，其中3例患者行CT延迟扫描，其中的1例患者与另1例患者行PET／CT检查；从胰腺形态、大小、强化形式、胰管、胆

7、总管、胰周及腹膜后间隙分析CT表现。结果66．7％(4／6例)AlP表现为胰腺弥漫增大，33．3％(2／6例)表现为胰腺局限性增大；66．7％(4／6例)可见“鞘膜”征；100％(5／5例)增强扫描呈门脉期和延迟期均匀强化；100％(6／6例)有主胰管狭窄；33．3％(2／6例)可见胆总管胰头段狭窄致低位胆道梗阻；33．3％(2／6例)伴淋巴结肿大。2例(100％)PET／CT提示病变摄取增高。结论自身免疫性胰腺炎具有典型的CT表现，能够明确诊断，避免不必要的手术。动脉期、门脉期及延迟期增强CT扫描对其诊断具有重要价值。[关键词]自身免疫性胰腺炎；体

8、层摄影术，X线计算机[中图分类号]R814．42；R576[文献标识码]A[文章编号]1003—3289(2