原发性大肠淋巴瘤的CT检查价值

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1、V腹部放射学A原发性大肠淋巴瘤的CT检查价值赵修义，张雪林，郑卫权，王劲，文戈【摘要】目的探讨原发性大肠淋巴瘤的CT表现及其诊断价值。资料与方法复习经病理证实的8例原发性大肠淋巴瘤CT资料。所有病例均行常规腹部CT平扫，6例加作增强扫描，扫描层厚、层距为5-10mmo结果8例原发性大肠淋巴瘤发病部位有肠3例，升结肠2例，直肠1例，大肠弥漫浸润2例。CT表现主要包括3种主要类型。局灶性肿块型2例，其中1例伴有肠套叠及腹膜后淋巴结肿大；节段环形浸润型3例，其中1例伴有肠系膜淋巴节肿大；弥浸浸润型2例，呈多发节段性分布，累及整个结肠，并伴有肠系膜床巴结肿大；直肠内的多发结节1例。结论CT

2、能较准确地显示淋巴瘤的发病部位、并发症及与邻近结构的关系；局灶性肿块型、节段环形浸润型及弥浸浸润型是大肠滞巴瘤的3种主要CT表现类型；正确辨认大肠淋巴瘤的CT表现，对部分病例可做岀提示性诊断。【关键词】淋巴瘤，诊断大肠体层摄影术，X线计算机EvaluationofCTSnninginDiagnosingPrimaryLargeIntestineLymphomasZHAOXiuyi>ZHANGXuelin,ZHENGWeiquan,etal.DiagnosticImagingCenter,NanfangHospitaltNo.1MilitaryMedicalUniversity,Gu

3、angzhoutGuangdongProvince510515,P.R・China[Abstract]ObjectiveTostudyCTfeaturesofprimarylargeintestinelymphomaandevaluateCTscanninginthediagnosisofthedisease・MaterialsandMethodsCTfindingsin8patientswithpathologicallyprovedprimarylargeintestinelymphomawereretrospectivelyanalyzed•PlainabdominalCTs

4、canningwasperformedinallpatientsfadditionalenhancedCTscanningwascarriedoutin6cases.Boththeslicethicknessandintervalwere5~10mm.ResultsTheprimarylargeintestinelymphomawaslocatedatcecum(n=3)tascendingcolon(n=2)frectum(zi=1)anddififuselyinfiltratingthewholecolon(n=2).OnCTscans,threetypesweremainl

5、yseen.Localizedmasstypewasseenin2casesfofwhichintussusceptionandretroperitonealadenopathywereaccompaniedinone.Segmentalannularinfiltrativetypeoccurredin3cases,ofwhichmesentericadenopathywasdemonstratedinone.Diffuseinfiltrativetypewasseenin3cases>twoofwhichshowedmultiplesegmentallesionsinthewh

6、olecolonwithmesentericadenopathyandtheotheroneshowedmultiplenodulesintherectum・ConclusionCTcanaccuratelydisplaythelesionf»siteandcomplications・aswellastheinvolvementoftheadjacentstructures.Localizedmasstype,segmentalannularinfiltrativetypeanddiffuseinfiltrativetypearethreemainpatternsonCTsca

7、ns.SuggestivediagnosiscanbemadeinsomepatientswhentheCTfeaturesmentionedabovecanberecognized.IKeywords]LymphomaDiagnosisLargeintestineTomographyfX・Mycomputed胃肠道是结外非霍奇金淋巴瘤最常见的部位。与发生于淋巴结的淋巴瘤相比，原发性胃肠道淋巴瘤(primarygastrointestinallymphoma,PG1L