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 body1新版寄生虫肺吸虫10/9/2022The main parasite including:1.Paragonimus westermani2.Paragonimus skrjabini3.Paragonimus heterotremus2新版寄
2、生虫肺吸虫10/9/2022Paragonimus westermani3新版寄生虫肺吸虫10/9/2022Oral suckerVetral suckerCecumUterusOvaryTestesExcretory bladder1.adultMorphology4新版寄生虫肺吸虫10/9/20225新版寄生虫肺吸虫10/9/20222.Egg卵盖卵盖operculum卵壳卵壳eggshell卵细胞卵细胞ovotid卵黄细胞卵黄细胞yolk cell6新版寄生虫肺吸虫10/9/2022Eggoperculumovotidyolk cell7新版寄生虫肺吸虫10/9/2022Live cyc
3、leAdult 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:Small intestine Abdominal cavityThoracic cavity
4、LungPass the diaphragmatic surfaceAre hatched in the duodenum8新版寄生虫肺吸虫10/9/20229新版寄生虫肺吸虫10/9/202210新版寄生虫肺吸虫10/9/2022Melania11新版寄生虫肺吸虫10/9/2022CrabCrayfish12新版寄生虫肺吸虫10/9/202213新版寄生虫肺吸虫10/9/2022Attention:1.Ectopic parasitismSubcutaneous,liver,brain,spinal cord,eye.14新版寄生虫肺吸虫10/9/2022Transport host:Som
5、e 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.15新版寄生虫肺吸虫10/9/2022Pathogenesis and clinical manifestation1.Acute period(cause by young worm)The young worms activity cause
6、 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.16新版寄生虫肺吸虫10/9/20222.Chronic periodA.Pathogenesis in lungThe adults mechanical spoilAnd its secretion and excretion inflammationabscesscystWhen th
7、e adult die or move Other place or the content Remove or bsorbedGranulation tissue formedfibrous17新版寄生虫肺吸虫10/9/2022Clinical symptomThe patient feel chest discomfort cough,hemoptysis(咳血咳血),Sputum is brown-flake,Egg is often found in the sputum18新版寄生虫肺吸虫10/9/2022B.Ectopic parasitismSubcutaneous-cysts
8、in the skinBrain-brain discomfort,epilepsy(癫痫),paralysis(瘫痪)Spinal cord-paresisEye-lose sight or vision disorderPeritoneum(腹膜腹膜)-abdominal pain,diarrhea,blood-stood,enlarging liver19新版寄生虫肺吸虫10/9/202220新版寄生虫肺吸虫10/9/2022Lungsymptom 21新版寄生虫肺吸虫10/9/2022Brain-spinal cords patient22新版寄生虫肺吸虫10/9/2022Perito
9、neum23新版寄生虫肺吸虫10/9/2022Subcutaneous24新版寄生虫肺吸虫10/9/2022DiagnosisMake 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 to find the egg in the sputum25新版寄生虫肺吸虫10/9/20222.X-ray,CT for the
10、 pleura and brain-spinal cords patient26新版寄生虫肺吸虫10/9/20223.Immuniology examinationFor the ectopic parasitismMethod:AST,ELISA,AST-ELISA27新版寄生虫肺吸虫10/9/2022EpidemiologyCharcteristic:parasitic zoonosesParagonimiasis infect the wile animal in the nature,when human being come into the area he will be infe
11、ct.Paragonimiasis had ever taken place in Japan,Korea,Russia28新版寄生虫肺吸虫10/9/2022Epidimiology factors:1.Infective source:A.Wild animal:fox,wolf,leopard,cat,dog etc.B.Human being2.Intermediate host:The snail or the crab which grow in the small stream.29新版寄生虫肺吸虫10/9/20223.Infective way:A.Eat the raw cra
12、b or“drunk crab”B.Eat the raw meat of transport hostC.Drink the unboiling water30新版寄生虫肺吸虫10/9/2022Treatment1.Pay attention to the eating habit,not to eat the raw crab,not to drink the unboiling water2.Treat the patient:Praziquantel Albendazole Tribendimidine Artemether Artesunate31新版寄生虫肺吸虫10/9/2022P
13、aragonimus skrjabini32新版寄生虫肺吸虫10/9/2022Morphology1.AdultShape:OliveSucker:Ventral sucker is larger than oral suckerTestes and ovary have more lobation2.Egg:Similar to paragonimus westermuni33新版寄生虫肺吸虫10/9/2022Live cycleEssential similar to paragonimus westermuniThe different from it is that:1.Definit
14、ive host:fruit-eating fox(the main)Human:Abnormal host,only young worm infect them.2.The No.1 intermediate host:The snail which grow in the small stream34新版寄生虫肺吸虫10/9/2022Tricula spp(拟钉螺）拟钉螺）35新版寄生虫肺吸虫10/9/2022Pathogenesis and clinical manifestations:Larva migrans:some parasite invade human being,hu
15、man 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.36新版寄生虫肺吸虫10/9/2022Clinical symptom:1.Subcutaneous type:cystsArea:back and abdomen,four limbs,inguinal region(腹股沟区腹股沟区),head and neck2.Internal organ:differ from what it invade the organ37新版寄生虫肺吸虫10/9/2022Diagnosis 1.Operation:2.Blood examination:3.Immunologic testEpidemiology and treatmentSimilar to paragonimus westermuni38新版寄生虫肺吸虫10/9/2022
