Schistosomiasis Flashcards
What is the infective stage for humans in schistosomiasis? (Harrison pp 1423)
Cercariae (Blood Flukes)
Metacercariae (Biliary Flukes)
What compromise the blood flukes? (Harrison pp 1423)
Schistosoma mansoni, japonicum, intercalatum, mekongi, haemotobium
True or false, all trematodes are hermaphroditic except schistosoma. (Harrison pp 1423)
True
What are the examples of Biliary Flukes? (Harrison pp 1423)
Clonorchis senesis, Opistorchis viverrrini, Opistorchis felienus, Fasciola hepatica, Fasciola gigantica
What compromise the Intestinal Flukes? (Harrison pp 1423)
Fasciolopsis buski and Heterophyes herterophyes
It is a lung fluke that may be seen in crayfish or crabs and globally known except in North America and Europe. (Harrison pp 1423)
Paragonimus westermani
It is a blood flukes that is seen in the China, Philippines and Indonesia. (Harrison pp 1423)
Schistomiasis japonicum
It is a blood flukes that is seen in Southeast Asia. (Harrison pp 1423)
Schistomiasis mekongi
It is a Intestinal flukes that is seen with ingestion of a freshwater or brackish-water. (Harrison pp 1423)
Heterophyes heterophyes
It is a useful indicator of infection and has significance in protective and immunopathologic. (Harrison pp 1423)
Peripheral blood eosinophilia
It is the main adaptive mechanism of survival of schistosomiasis in human. (Harrison pp 1424)
Trilaminar to Heptalaminar
Sexually mature worms like S. mansoni, S. japonicum, S. mekongi and S. intercalatum goes to which part of the body and also where they deposit their ova? (Harrison pp 1424)
Intestinal veins
Sexually mature S. Haematobium goest to which part of the body and also where they deposit their ova? (Harrison pp 1424)
Pelvic Veins
True or False: All forms of Schistosoma infection are associated with subclinical systemic morbidities that cause significantly affect the physical and cognitive performance like growth stunting, undernutrition and aniemia. (Harrison pp 1425)
True
What are initially recruited in granuloma (Schistosomula) formation? (Harrison pp 1425)
Phagocytes
Antigen specific T cells
Eosinophils
What is recruited later in granuloma formation? (Harrison pp 1425)
Fibroblasts
Giant cells
B lymphocytes
Where does granuloma formation occurs? (Harrison pp 1426)
Perisinusoidal sites
What happened if there is perisinusoidal portal blockage? (Harrison pp 1426)
Portal hypertension
Portosystematic collaterals at the esophageal junction
Esophageal varices
It is characteristically as fibrosis at periportal but may be diffuse. (Harrison pp 1426)
Symmer’s clay pipe-stem fibrosis
In Schistosomiasis haemotobium, the granuloma formation occurs in the lower end of the ureters that obstructs the urinary flow, which eventually leads to the following: (Harrison pp 1426)
Hydroureter
Hydronephrosis
Secondary infertility or subfecundity may result that involves what areas of the of female’s genitals? (Harrison pp 1426)
FUO
Fallopian tubes
Uterus
Ovaries
It is during the phase of cercarial invasion, a form of dermitis that usually involved the S. mansoni and S. japonicum. (Harrison pp 1426)
Swimmer’s Itch
It is a serum like sickness like illness with fever, generalized lymphadenopathy and hepatosplenomegaly. (Harrison pp 1426)
Katayama Syndrome
What is the main clinical manifestations of chronic shistosomiasis? (Harrison pp 1426)
Species dependent
