绦虫概述带绦虫临床八年制

周日星节课程内地教师师2/形式/12015-9-—3-总论(一程训理12015-9-五3-程训理22015-9-—3-钩虫、旋毛虫（一程训理22015-9-二1-实验一：线虫（一实22015-9-五3-旋毛虫（二）、丝虫、绦虫概程训理32015-9-—3-猪带绦虫、牛带绦虫、曼氏迭宫绦程训理32015-9-五3-包生绦虫、吸虫概论、肝吸程训理42015-9-—3-姜片虫）、肺吸程训理42015-9-二1-实验二：线虫（二）、绦实52015-10-五3-血吸程训理62015-10-—3-食源 专题、原虫概程训理62015-10-二1-实验三：吸虫镜检考实62015-10-五3-阿米程训理72015-10-—3-贾第虫、程训理72015-10-五3-利什曼原虫、锥虫（一程训理82015-10-—3-锥虫（二）、疟原虫（一程训理82015-10-二1-实验四：原虫（一实82015-10-五3-疟原虫（二）、巴贝程训理92015-11-—3-机会致程训理92015-11-五3-医昆概述、医昆（一程训理2015-11-—3-医昆（二程训理2015-11-二1-实验五：原虫（二）、昆虫PPT标本辨识实 绦 学名链状带绦 牛肉绦 学名肥胖带绦 包生绦 学名细粒棘球绦 Echinococcus Spirometra形背腹扁平，左右对虫体分节：头节颈 幼链无体雌雄同无消头节具固

孕节(gravidababcTapewormsarepolyzoicandconsistof3regions:Scolex-anterior ent entdifferinthe2importantOrderPseudophyllidea-containsslit-likesuckers OrderCyclophyllidea-scolex sucker(吸盘)andacentraldomedareacalledthe lum(顶突)withorwithoutScolexisanimportanttaxonomicNeck-undifferentiatedregionposteriortoscolexStrobila-linearseriesofsegmentsorProglottidsarecontinuouslyformedposteriortotheneckregioninaprocesscalledstrobilization.Asnewproglottidsareformed,theolderproglottidsmoveposteriorlyand sexuallymature.immatureproglottids–matureproglottids–gravidproglottids-GravidproglottidsMaleandfemaleorgansingravidproglottidsdegenerateastheuterusfillswitheggs.GravidproglottidsoftendetachfromthedisintegrateduringpassagethroughdigestivetractreleasingeggsintheorarereleasedintactintheGravid生活lifecyclesinvolvelarvaldevelopmentin1or2(一)不需中间宿 性虫(二)需一个中间宿主囊尾蚴(三)需二个中间宿主裂头蚴Taeniasolium,porktapeworm,adultwormlivesinsmallintestine,resultinTaeniasis,porktapeworminfection.引 绦虫病(Taeniasis)幼虫,(Cysticercuscellulosae)引起囊虫病,或称猪囊尾蚴病(Cysticercosis)。Cysticercuscellulosae,larvalstageofTaeniasolium,isanellipsoidal,translucent,thin-walledbladder. Thelingual,masseteric,mucosal,diaphragmatic,andcardiacmusclesarechieflyaffected,buttheliver,kidneys,lungs,brain,andeyemayalsobeinvolved,resultinCysticercosis2—4(occasionally8)metersinfullydevelopedcontains800to1000theglobularscolex,about1mm meterequippedwith4cup-shapedsuckers,roslum,doublecrownof25to30hooks 官未成 官已成thematureproglottidisroughlysquare,150-200testes,theovaryconsistsoftwoprominentlobesandonesmallcentrallobe 几乎占满整个节thegravidproglottidcontains7-13branches6 spherical,thinouterenvelope,athinkbrownembryophore,containedhexacanthembryo(onchosphere)whichbears6Cysticercusmilky-whitebladderwithminutescolex0.5cmormoreinCysticercuswithCysticercuswithMeaslyPeoplearetheonlydefinitiveTheusualintermediatehoststhatharborthelarvaarehogs&wildHuman sobehostsofthe Adult

ingestedbyingestedby

insmall

gravidoregginingestedby

特点：1.人 绦虫唯一的终宿成 孕节、虫

食Hogsingesteggs,oncospherehatchesinintestine,penetratesthroughtheintestinalwallintomesertericvenules,reachesEmbryodevelopsintoacysticercus-subsphericaltomilky-whitebladderwithaninvaginatedminuteCysticerciingestedbyman,maturein2CysticercosisinmanresultsfromingestionofT.soliumorifanadulttapewormpresentinintestine,reverseperistalsismaybringeggsuptothestomach,oncospheremayhatchand成 1.机械性作 asingleadulttapeworm orepigastricpain,幼 方式 dependonthelocationofbrain,subcutaneousandmuscles,eyeCysticercirarelyareseenintheheart,lung,liver,orkidneysHumancana anintermediatehostforT.solium ingestedtheeggs,throughtheconsumptionofcontaminatedfoodorwater. Patientwhoalreadyareinfectedwithanadultwormintheintestinemaybeautoinfectedthroughfecal-oral orreverseperistalsisofproglottidsoftheparasiteintothestomach,wheretheeggsaredigested.Neurocysticercosis-afatalmassiveinfectioncausingmuscularpseudohypertro-phia;thousandsofcystsmassiveinfectioncausingmuscularpseudohypertro-phia;thousandsofcystsfollowingthemuscleplanescanbeseen.假性肌肥大：肌肉肥大，但弹力、肌力、腱反射均Cases：7例脑囊虫病患者均为市公共卫生临床中心年至2008年收治确诊的病例。标准：①有绦虫病史或食米史。②主要症状有：癫痫发作，颅内高压和神经精神性。男4例，女3例；15-55岁,有绦虫病史者2例，与绦 (一 绦虫病Porktapeworminfectioneggs,gravidproglottidesmayalsobepassedintothefecesthescolexmaybepresentonlyaftertreatedbydrug脑型CT检查、眼型眼底镜Cysticercus clinicaldiagnosiscanbemadelinkingbiopsyinthesibcutaneousX-rayexaminationofinfectedmusclesorcentralnervoussystemtissuesmayconfirmdiagnosisbyrevealingcalcified MRIImmunologic T.soliumisendemicinallpartsoftheworldwhereporkorporkproductsareeatenHumanisthedefinitivehostHugistheintermediateHumaninfectedbyingestingraworinadequa ycookedinfectedhugFactorsfavoringtransmissionEggorsegmentcontaminationofthegrassandMethodofraisingdomesticUnhygienichabitofeatingrawPreventionand(一)

猪带绦虫病：槟榔、南瓜子 iseffectiveforSurgicalremovalisindicatedwheneverpossibleinAlbendazoleand arenowasthedrugofTaeniasolium&Taeniasaginataaretwomembersofthespeciesthatareofclinicalsignificanceto学名(Taeniasaginata)，成虫寄生小肠引起牛肉绦虫病。ThetwoorganismsaresimilarinmostrespectwithonlyafewnotableexceptionsCattleareintermediateGravidproglottidsmoreCysticercusnotfoundin LifeCycleStagesofTaeniarhynchus Matureproglottid Gravidproglottid(diagnosticinfeces!)Egghasastriatedembryophoreandinneroncospherewith6hooks

Cysticercusinvaginated虫 绦 牛肉绦体 节 方形，无顶突及 分三叶，一 叶， 支

分支两叉性，每侧15-30囊尾 头节无小钩，DifferencesbetweenTsoliumandT. No.of2-4800-4-81000-4,roslum4Mature1small&2large2largeSegment150-300-uterine7-15-Infectivecysticercuscellulosae,cysticercusIntermediatehug,Habitatinintestine,Nameoftaeniasis,Mainlyabdominalpain,non-specificHumaninfectedbyingestingraworinadequa cookedinfectedbeefDiagnosisandcontrolaresimilarwithT. 拭Dignosis-identifygravidproglottidinfeceswith15-30lateraluterinearms.

Eggsarenotdiagnosticastheyaretypicallynotfoundinfeces.Eggscannotbedistinquishedfromothertaeniid食用牛肉方Treatment： 阔节裂头绦虫（Diphyllobothriumlatum）成虫主要寄生在人 commonnameis“fish>10mlong(longestparasitetoinfecthumans)acquiredbyeatingraworundercookedfreshwaterfishlivesinlumenofsmallintestinedoeslittleharmtoitshostinmostvitaminB12(sometimescausespathologicalconsequencesfor vitaminB12deficiencyfromD.latumtapewormsabsorbv