H. Nana

Question 1

Other name
Type
Geo

Answer 1

• dwarf tape worm
• cestode
• the commenst intestinal cestode in egypt

Question 2

Life cycle

Answer 2

2-3-4

• adults live in small intestine of man / resevoir ( rats and mice )
• eggs are laid in stool

Direct cycle (3) ( no intermediate host)
- the man is infected by eggs in food
- egg hatches into onchospere penetrating the intestinal VILLI becoming cysticercoid larva then back to lumen ( out of villi) becoming adult
- and then it lay its eggs

Indirect cycle (4)( with intermediate host )
- the feces of rats contaminated with eggs are eaten by flea larva
- egg hatches into onchospere then to cysticercoid larva
- man is infected by eating food contaminated with adult flea containg cyticercoid larva
- cyticercoid larva mature to adult to lay eggs

Question 3

Patho

Answer 3

2
Asymptomatic with light infection
Heavy infection : vomiting , diarrhea, nausea, constipation , GROWTH RETARDATION

Question 4

Diagnosis

Answer 4

Detecting eggs in stool

Question 5

Treatment

Answer 5

Praziquental repeated after 10 days due auto infection and all family members must take it

Question 6

Inhabitants- diagnostic - infective - definitve - resrvoir -intermediate - mode of infection

Answer 6

Small intestine- egg- cyticercoid larva ( indirect) / eggs ( direct) - man- rats / mice - flea ( indirect) -

food contaminated with egg ( direct )
food contaminated with adult flea containg cyticercoid larva
External auto infection
Internal auto infection

Question 7

Morphology

Answer 7

Mature , gravid segments are broader than long