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forewordChaptet49 TrematodesnSECTION 1 INTRODUCTION2.2.Digestive systemDigestive system：Compose with mouth、pharynx、esophagus、cecum MORPHOLOGYMORPHOLOGY1.1.SHAPESHAPE：Leaf-shape、tong-shape，Oral sucker、ventral suckernStrong,most of them are hermaphroditeovary、Uterine tube、Seminal receptacle、Laurers canal、Eggmodel、Meglands、Vitelline glands and uterus.testes、efferent ductule、deferential duct、seminal vesicle、prostate、penis、packet of penis.:a a.adult parasite in human being and mammal,worm parasite in aquatic animal(example:snail)Life cycleLife cyclecomplexcomplex：b.Growing process includeeggmiracidiumsporocystrediacercariametacercariaYoung wormadult尾蚴微尾尾蚴叉尾尾蚴鳍尾尾蚴foreword With our living standard impove the people want to eat something cooked by different style.do you know what disease you will suffer from by eating raw fish and shrimbClonorchis sinensis1.adultShape:Sucker:Cecum:Hermaphrodite:morphology2.eggShape:Size:Colour:Egg shell:Content:operculumShoulder peakmiracidiumVerrucous thingLive cycleadultEgg Egg pass into water in fecesEgg are swallow by snail and hatch by itmiracidiumsporocystrediacercariaAll these stages grow in snailmetacercariaCercaria leave snail and eated by fresh-water fish Man is infected byEating uncooked fishwormadult Pathogenesis and clinical maniefstationThe theory of diseaseAdults mechanical destructionSecretion and excretions toxicityIt cause the cell of duct fall off and cause the cell have hyperplasia and inflammation The tissue fibre The worm blockageThe duct wall become thickThe ductBecome narrowDuct blockageBile retention Duct expandThey cause liver cellAtrophy,necrosis and cirrhosis cirrhosisThe diseaseBlockage icterusCholangitis and hepatitisCholelithiasiscirrhosisLiver duct cancerActute hemorrhagic necrosis of pancreasAdult parasite in the bileAdult crow in liver ductBlockage icterusAdult in the ductcholelithiasischolelithiasisAscites and epigastric varixLiver parm Spider-shape veinLiver duct cancerActute hemorrhagic necrosis of pancreasInfluence growthNo symptomClinical manifestationMost of them have no obvious symptomSome feel tiredness,hepatic enlargement,right upper quadrant mild pain,abdominal pain,anorexia,dizziness.When it become serious the patient has ascites,unconscious and will die later.diagnosisDialogue about case histories:a.Whether come from epedemiologic area b.Whether have the habit of eating raw fresh water fish or shrimp1.laboratory diagnosis:check egg sure diagnosisa.Stool examination vDirect amear methodvNature sedimentationmethodvFormalin ether methodb.The duodenum secretion examination2.Immunologic examinationvIh testvIHAvELISA3.Ultrasonic wave examinationepidemic Local epidemicInfective rate:1%30%,some are 80%Epidemic area:Japan、Korea、Vinan、ThailandChina:Epidemic factor:n(in chinese,can you read)由于现代都由于现代都市人不再满足于鸡鸭鱼肉，转而追求市人不再满足于鸡鸭鱼肉，转而追求鲜、肥、生猛，因此生鱼片、野味、鲜、肥、生猛，因此生鱼片、野味、醉蟹、炝虾、涮火锅等成为许多饭店醉蟹、炝虾、涮火锅等成为许多饭店餐馆的招牌菜。无意之中，许多人染餐馆的招牌菜。无意之中，许多人染上了寄生虫病，有些曾经是上了寄生虫病，有些曾经是“罕见罕见”的。这些的。这些“吃出来的病吃出来的病”被媒体称之被媒体称之为新的为新的“富贵病富贵病”1.Infective resource:patient and carrier,reservoir host2.Spread way:egg pass into water in feces intermediate host exit,people have the habit of eating raw fish or raw shrimb Grilled fishChopping blockQuestion?Question?Answer:返回返回3.Easy infective people:all peopletreatment1.hygiene educationDo not eat raw fish or raw shrimbNot let cat eat raw fish or raw shrimb too2.treat the patient and carrier3.Not let the feces pass into the fresh-water Now do you still dare to eat the raw fish or raw shrimb！？
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