1、Typical characterFemale genital system:Ovary and womb are at the same level on midline Male genital system:Testes are located at the junction of the posterior fourth of the bodyTypical characterFemale genitaThe main parasite including: Paragonimus westermani2. Paragonimus skrjabini3. Paragonimus het

2、erotremusThe main parasite including: PParagonimus westermaniParagonimus westermaniOral suckerVetral suckerCecumUterusOvaryTestesExcretory bladder1.adultMorphologyOral suckerVetral suckerCecumU新版寄生蟲肺吸蟲課件2. Egg卵蓋operculum卵殼eggshell卵細(xì)胞ovotid卵黃細(xì)胞yolk cell2. Egg卵蓋operculum卵殼eggshell卵細(xì)胞Eggoperculumovotid

3、yolk cellEggoperculumovotidyolk cellLive cycleAdult eggEggs pass into water in fecesmiracidiumsporocystcercariaAll these stage are growed in the snailleave snail and are eated By crabmetacercariaMan is infective by eating the raw crab .wormWorm move throughThe internal organsadultWorms moving way:Sm

4、all intestine Abdominal cavityThoracic cavityLungPass the diaphragmatic surfaceAre hatched in the duodenumLive cycleAdult eggEggs pass i新版寄生蟲肺吸蟲課件新版寄生蟲肺吸蟲課件MelaniaMelaniaCrabCrayfishCrabCrayfish新版寄生蟲肺吸蟲課件Attention:1. Ectopic parasitismSubcutaneous, liver, brain ,spinal cord, eye.Attention:1. Ectopic

5、 parasitisTransport host: Some parasite worm invade abnormal host ,it can not become adult,it maintain the worm stage,but when it has chance to invade normal host it become adult ,the abnormal host called it. Transport host: Some paraPathogenesis and clinical manifestation1. Acute period (cause by y

6、oung worm)The young worms activity cause the partial tissue and organ damaged,bleed,inflamation,the damaged area became a hole and then lead to the tissue ibous,adhesions,particularly the liver.Pathogenesis and clinical mani2.Chronic periodPathogenesis in lungThe adults mechanical spoilAnd its secre

7、tion and excretion inflammationabscesscystWhen the adult die or move Other place or the content Remove or bsorbedGranulation tissue formedfibrous2.Chronic periodPathogenesis iClinical symptomThe patient feel chest discomfort cough, hemoptysis(咳血) ,Sputum is brown-flake,Egg is often found in the sput

8、umClinical symptomThe patient feB. Ectopic parasitismSubcutaneous-cysts in the skinBrain-brain discomfort , epilepsy (癲癇), paralysis (癱瘓)Spinal cord-paresisEye -lose sight or vision disorderPeritoneum(腹膜)-abdominal pain , diarrhea, blood-stood, enlarging liverB. Ectopic parasitismSubcutane新版寄生蟲肺吸蟲課件

9、Lungsymptom Lungsymptom Brain-spinal cords patientBrain-spinal cords patientPeritoneumPeritoneumSubcutaneousSubcutaneousDiagnosisMake sure whether the patient has the habit of eating the raw crab1. Examination Use the water sedimentation method to find the egg in the fecesUse the direct smear method

10、 to find the egg in the sputumDiagnosisMake sure whether the2. X-ray ,CT for the pleura and brain-spinal cords patient2. X-ray ,CT3.Immuniology examinationFor the ectopic parasitismMethod: AST,ELISA,AST-ELISA3.Immuniology examinationFor tEpidemiologyCharcteristic: parasitic zoonosesParagonimiasis in

11、fect the wile animal in the nature,when human being come into the area he will be infect.Paragonimiasis had ever taken place in Japan ,Korea, RussiaEpidemiologyCharcteristic: parEpidimiology factors:1. Infective source:A.Wild animal : fox, wolf, leopard, cat, dog etc. B. Human being2. Intermediate h

12、ost: The snail or the crab which grow in the small stream.Epidimiology factors:1. Infect3. Infective way:Eat the raw crab or “drunk crab”B. Eat the raw meat of transport hostC. Drink the unboiling water3. Infective way:Eat the raw cTreatmentPay attention to the eating habit , not to eat the raw crab

13、,not to drink the unboiling water2. Treat the patient: Praziquantel Albendazole Tribendimidine Artemether ArtesunateTreatmentPay attention to the Paragonimus skrjabiniParagonimus skrjabiniMorphology1. AdultShape : OliveSucker: Ventral sucker is larger than oral suckerTestes and ovary have more lobat

14、ion2. Egg: Similar to paragonimus westermuniMorphology1. AdultShape : OlivLive cycleEssential similar to paragonimus westermuniThe different from it is that:1. Definitive host: fruit-eating fox (the main)Human : Abnormal host ,only young worm infect them.2.The No.1 intermediate host: The snail which

15、 grow in the small streamLive cycleEssential similar toTricula spp (擬釘螺）Tricula spp (擬釘螺）Pathogenesis and clinical manifestations: Larva migrans: some parasite invade human being , human is not the normal host, it only stay in the stage of young worm, the young worm paraste and migration in the body for a long time, at last it cause particular and peneral pathologic change. Pathogenesis and clinical maniClinical symptom:1.Subcutaneous type: cystsArea: back and abdomen, four limbs, inguinal region(腹股溝區(qū)), hea