Worms Flashcards
Cestodes (tapeworms) characteristics
Segmented
Have proglottids
No body cavity(coelem)
No circulatory or respiratory system
No alimentary canal
Hemaphrodite
Flame cells excretory system
(Cestodes )Tapeworms types
•Taenia solium:pork tapeworm ,causes intestinal tapeworm(praziquantel),
neurocysticercosis(bendazole)
•Taenia saginata:beef tapeworm causes
Intestinal tapeworm (praziquantel)
•Diphylobatrium latum: fish tapeworm
Causes b12 deficiency and intestinal tapeworm (proziquentel)
•Echinococus granulosus :dog tapeworm affects liver ,lung and brain =hydration cysts(bendazole and surgical cyst removal)
Trematodes flukes features
Leaf like
No body cavity
Exit or endo parasite
Non segmented
Paired testes (scepter schistosomes vary in Number )
Single ovary
Schistosomiasis (trematodes)
Snail fever ,katayama fever, bilharziasis
Chronic parasitic disease caused by blood flukes ( trematodes) of the genus schistosoma transmitted to humans through snails
TYPES
•schistosoma hematobium (terminal s) Urogenital
•Schistosoma mansoni (lateral spine) Intestine
•Schistosoma japonicum(minutely spine) Intestine
Schistosoma intercalatum (terminal)
Schistosoma mekongi(minutely)
Schistosoma risk factors and features
RISK FACTORS
•swimming in lakes infested with snails
•Fishing in infested water
•Washing of clothes in infested water bodies
CLINICAL FEATURES
•Low grade fever
•Weight loss
•Fatigue
•Anemia
*Intestinal: abd pain, diarrhea , liver enlarged
*Urogenital: terminal hematuria , dysuria
*Females : genital lesions , vaginal bleed
Schistosoma complication and tx
•intestinal:
Liver fibrosis
Colon cancer
Portal hypertension
Malnutrition
Esophageal varies
Urogenital:
Bladder cancer
Cystitis
Infertility
Renal failure
Anemia
Tx
All:proziquental
Hematobium: metriphonate
Mansoni:oxamniquine
Match
Laosis- chrysops flies
Leishmaniasis-sandflies
African trypanosomiasis-tse tse flies
American trypanosomiasis- triaging (kissing bug )
Onchocerciasis- stimulus spp
Lymphatic filariasis- culex mosquito
Trichinosis
Muscle pain
Eosinophilia
Facial edema
Gi upset