ReviewUterusAcetabulumlOvaryFemaleMale-IntestineVitellariaGynecophoralcanal
Review
Life cycle (S.j.)1. Site of inhabitation: the portal vein system.mainly in the inferior mesenteric vein2. Infective stage: cercaria3. Infective route: by skin4. Intermediate hosts: Oncomelania snail5. Reservoir hosts: mammals such as buffalo.cattle, wild rodents, goat, monkey, pig, fox6. Eggs are main pathogenic factor
Life cycle (S.j.) 1. Site of inhabitation: the portal vein system, mainly in the inferior mesenteric vein. 2. Infective stage: cercaria 3. Infective route: by skin 4. Intermediate hosts: Oncomelania snail 5. Reservoir hosts: mammals such as buffalo, cattle, wild rodents, goat, monkey, pig, fox. 6. Eggs are main pathogenic factor
Egg granulomatousEggs with miracidium can release someantigenic (SEA)and enzymatic secretionswhich can induce a granulomatous cell-mediated responses of lymphocytes,macrophages and eosinophils.IV type delay hypersensitivity
Egg granulomatous Eggs with miracidium can release some antigenic (SEA)and enzymatic secretions, which can induce a granulomatous cellmediated responses of lymphocytes, macrophages and eosinophils. IV type delay hypersensitivity
Clinical manifestations (symptoms and signs )(1) Initial phase:It is characterized by fever, dry cough (pneumonitis), urticaria*(2) Acute stage:The characteristics symptoms is dysentery. hepatomegalysplenomegaly occur.*(3) Chronic stage:Chief manifestation of the patients are interval diarrhea ordysentery. hepato-splenomegaly, anemia.*(4) Terminal stage:is characterized by portal vein hypertension syndrome,Ascites, splenomegaly, emaciation, varicosity and anemia
Clinical manifestations (symptoms and signs ) (1) Initial phase: It is characterized by fever, dry cough (pneumonitis), urticaria. *(2) Acute stage: The characteristics symptoms is dysentery. hepatomegaly, splenomegaly occur. *(3) Chronic stage: Chief manifestation of the patients are interval diarrhea or dysentery. hepato-splenomegaly, anemia. *(4) Terminal stage: is characterized by portal vein hypertension syndrome, Ascites, splenomegaly, emaciation, varicosity and anemia
(5) Ectopic lesion: cerebral schistosomiasis, andpulmonary schistosomiasis etcTreatment:Drug of choice for man: Praziqantel is prettyeffective
(5) Ectopic lesion: cerebral schistosomiasis, and pulmonary schistosomiasis etc. Treatment: Drug of choice for man: Praziqantel is pretty effective