PARA LAB - Hymenolepis species Flashcards
who are most affected by hymenolepis spp
chldren
cn of hymenolepis nana
dward tapeworm
cn of h. diminuta
rat tapeworm
FH of h. nana
man
FH of h. diminuta
rats
RH of h. nana
rats
AH of h. diminuta
man
habitat of hymenolepis spp
small intestine
IH of H. nana [5]
dog flea human flea rat flea rice beetle flour bettle
IH of h. diminuta [6]
variety of arthropods: cockroach, rat flea, flour moths, rice beetle, flour beetle
SN of dog flea
Ctenocephalides canis
SN of human flea
Pulex irritans
SN of Rat flea
Xenopsylla cheopsis
SN of Tenebrio
Rice beetle
SN of Tribolium
Flour beetle
IS of H. nana [2]
Cysticercoid larva [Indirect Life cycle]
Embryonated egg [Direct LC]
IS of H. diminuta
cysticercoid larva
MOT of h species
ingestion
scolex of H. nana [describe shape and rostellum]
subglobular or rhomboidal
armed rostellum with Y-shaped hooks
describe hooks of H. nana
Y-shaped hooks
scolex of H. diminuta [describe shape and rostellum]
Knob shaped
Unarmed rostellum
mature proglottid of h. nana describe testes and ovary
3 ovoid testes
1 ovoid ovary
mature proglottid of h. diminuta describe testes and ovary
3 ovoid testes
1 ovoid ovary
disease manifestation of H. nana
usually asymptomatic
most common CESTODE infection in the word
H. nana infection
disease manifestation of H. diminuta
minimal and non-specific
egg of H. nana describe
spherical with oncosphere [w/c has 6 hooklets]
polar thickening
polar filaments [6-8]
Egg of H. diminuta describe
Fried egg or sunny side up appearance spherical oncosphere polar thickening NO POLAR FILAMENTS
dx for h. nana
stool exam
rx of choice for
PZQ
