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Tapeworms. (Cestodes). DISEASE. TRANSMISSION OF INFECTION. LOCATION OF ADULT IN HUMANS. LOCATION OF LARVA IN HUMANS. CLINICAL PICTURE. Common Tapeworm Infections. Taenia saginata. taeniasis. ingestion of larva in undercooked beef. Small Intestine. not present.

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Tapeworms

Tapeworms

(Cestodes)


DISEASE

TRANSMISSION

OF INFECTION

LOCATION OF ADULT

IN HUMANS

LOCATION

OF LARVA

IN HUMANS

CLINICALPICTURE

Common Tapeworm Infections

Taenia saginata

taeniasis

ingestion of larva in undercooked

beef

Small

Intestine

not present

vague digestive disturbances

eggs or

proglottids

in stools

taeniasis

ingestion of larva in undercooked

pork

Small

Intestine

not present

vague digestive disturbances

eggs or

proglottids

in stools

Taenia solium-

LARVA

(cysticercus cellulosae)

Cysticercosis

ingestion of egg

not present (except in

autoinfection:

,small intestine)

sub-cutaneous

muscles

brain,eyes

depending on

locality:

from none to

epilepsy

X -ray,CT,MRI

Serology

Hymenolepis nana

hymenolepiais

ingestion of egg

Small

Intestine

Intestinal

Villi

Enteritis

diarrhoea

eggs in

stools

Echinochoccus

granulosus

hydatid disease

ingestion of egg

not present

Liver, lungs,

Bones etc

depending on

locality

X-ray,CT,US

Serology

Hydatid sand

LAB.

DIAGNOSIS

Taenia solium-

ADULT

TAPEWORM


Life cycle of Taenia saginata


Life cycle of

Taenia saginata



Life cycle of

Taenia solium





Life cycle of Echinococcus granulosus


Life cycle of

Echinococcus granulosus


Life cycle of Echinococcus granulosus


Location of hydatid cyst

Echinococcus granulosus


Life cycle of

Echinococcus granulosus


Adult echinococcus granulosus
Adult Echinococcus granulosus


Adult Echinococcus granulosus



Egg of Echinococcus granulosus

Hydatid cyst







Treatment of tapeworms
Treatment of Tapeworms

  • Intestinal stages: Praziquantel

  • Tissue stages ( Hydatid , cysticersosis):

    • Depends on clinical condition : Surgical and/or Albendazole