新版寄生蟲肺吸蟲

paragonimusTypicalcharacterFemalegenitalsystem:Ovaryandwombareatthesamelevelonmidline

Malegenitalsystem:TestesarelocatedatthejunctionoftheposteriorfourthofthebodyThemainparasiteincluding:Paragonimuswestermani2.Paragonimusskrjabini3.ParagonimusheterotremusParagonimuswestermaniOralsuckerVetralsuckerCecumUterusOvaryTestesExcretorybladder1.adultMorphology2.Egg卵蓋operculum卵殼eggshell卵細胞ovotid卵黃細胞yolkcellEggoperculumovotidyolkcellLivecycleAdulteggEggspassintowaterinfecesmiracidiumsporocystcercariaAllthesestagearegrowedinthesnailleavesnailandareeatedBycrabmetacercariaManisinfectivebyeatingtherawcrab.wormWormmovethroughTheinternalorgansadultWorm’smovingway:SmallintestineAbdominalcavityThoraciccavityLungPassthediaphragmaticsurfaceArehatchedintheduodenumMelaniaCrabCrayfishAttention:1.EctopicparasitismSubcutaneous,liver,brain,spinalcord,eye…..Transporthost:

Someparasiteworminvadeabnormalhost,itcannotbecomeadult,itmaintainthewormstage,butwhenithaschancetoinvadenormalhostitbecomeadult,theabnormalhostcalledit.Pathogenesisandclinicalmanifestation1.Acuteperiod(causebyyoungworm)Theyoungworm’sactivitycausethepartialtissueandorgandamaged,bleed,inflamation,thedamagedareabecameaholeandthenleadtothetissueibous,adhesions,particularlytheliver.2.ChronicperiodPathogenesisinlungTheadult’smechanicalspoilAnditssecretionandexcretioninflammationabscesscystWhentheadultdieormoveOtherplaceorthecontentRemoveorbsorbedGranulationtissueformedfibrousClinicalsymptomThepatientfeelchestdiscomfortcough,hemoptysis(咳血)

,Sputumisbrown-flake,EggisoftenfoundinthesputumB.EctopicparasitismSubcutaneous---cystsintheskinBrain---braindiscomfort,epilepsy(癲癇),

paralysis(癱瘓)Spinalcord---paresisEye---losesightorvisiondisorderPeritoneum(腹膜)---abdominalpain,diarrhea,blood-stood,enlargingliverLung’symptomBrain-spinalcord’spatientPeritoneumSubcutaneousDiagnosisMakesurewhetherthepatienthasthehabitofeatingtherawcrab1.ExaminationUsethewatersedimentationmethodtofindtheegginthefecesUsethedirectsmearmethodtofindtheegginthesputum2.X-ray,CTforthepleuraandbrain-spinalcord’spatient3.ImmuniologyexaminationFortheectopicparasitismMethod:AST,ELISA,AST-ELISAEpidemiologyCharcteristic:parasiticzoonosesParagonimiasisinfectthewileanimalinthenature,whenhumanbeingcomeintotheareahewillbeinfect.ParagonimiasishadevertakenplaceinJapan,Korea,RussiaEpidimiologyfactors:1.Infectivesource:A.Wildanimal:fox,wolf,leopard,cat,dogetc.B.Humanbeing2.Intermediatehost:Thesnailorthecrabwhichgrowinthesmallstream.3.Infectiveway:Eattherawcrabor“drunkcrab”B.EattherawmeatoftransporthostC.DrinktheunboilingwaterTreatmentPayattentiontotheeatinghabit,nottoeattherawcrab,nottodrinktheunboilingwater2.Treatthepatient:PraziquantelAlbendazoleTribendimidineArtemetherArtesunateParagonimusskrjabiniMorphology1.AdultShape:OliveSucker:VentralsuckerislargerthanoralsuckerTestesandovaryhavemorelobation2.Egg:

SimilartoparagonimuswestermuniLivecycleEssentialsimilartoparagonimuswestermuniThedifferentfromitisthat:1.Definitivehost:fruit-eatingfox(themain)Human:Abnormalhost,onlyyoungworminfectthem.2.TheNo.1intermediatehost:ThesnailwhichgrowinthesmallstreamTriculaspp

(擬釘螺）Pathogenesisandclinicalmanifestations:Larvamigrans:someparasiteinvadehumanbeing,humanisnotthenormalhost,itonlystayinthestageofyoungworm,theyoungwormparasteandmigrationinthebodyforalongtime,atlastitcauseparticularandpeneralpathologicchange.Clinicalsymptom:1.Subcutaneoustype:cystsArea:backandabdomen,fourlimbs,inguinalregion(腹股溝區(qū)