HYMENOLEPIS DIMINUTA
(RAT TAPEWORM)
(RAT TAPEWORM)
Hymenolepis diminuta differs from Hymenolepis nana in that:
♦ The adult worm measures about 10-60 cm
♦ The rosetellum on the head has no hooks
♦ In the mature segment, there are two testes at one side and another testis on the other side.
Life Cycle
The adult worms are present in the small intestine of man and rats. Eggs passed in stool are similar to the eggs of H. nana but are brown in color with no polar filaments arising from the polar thickening. The eggs are ingested by the rat flea where they develop to cysticercoid stage. Infection to man takes place accidentally by food or contaminated hands by cysticercoid stage.
Pathogenecity
Most infections are asymptomatic, but occasionally, patients may present with nausea, anorexia and diarrhea.
Treatment
Same as Hymenolepis nana.
INSTAGRAM
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