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Parasitology II UNIVET > Larval Cestodes > Flashcards

Larval Cestodes Flashcards

1
Q
A

Mesocestoides “lineatus” sp.

FH: Dogs/Foxes

IH: Arthropods (mites & insects)/Lower vertebrates
(frogs, lizards, birds)

Cysticercoid & Tetrathyridium

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2
Q
A

Mesocestoides “lineatus” sp.

FH: Dogs/Foxes

IH: Arthropods (mites & insects)/Lower vertebrates
(frogs, lizards, birds)

Cysticercoid & Tetrathyridium

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3
Q

Main features of

Cyclophyllidae

(Mesocestoides, Taenia, Echinococcus spp.)

A
  1. Live a adults in carnivorous mammals or humans
  2. Usually do not cause harmful effects in the final host
  3. Usually no symptoms occurs in the intermediate hosts
  4. They live for years in the intermediate hosts but the lifespan is shorter in the final host
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4
Q
A

Mesocestoides larva

FH: Dogs/Foxes

IH: Arthropods (mites & insects)/Lower vertebrates
(frogs, lizards, birds)

Cysticercoid & Tetrathyridium

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5
Q
A

Mesocestoides larva

FH: Dogs/Foxes

IH: Arthropods (mites & insects)/Lower vertebrates
(frogs, lizards, birds)

Cysticercoid & Tetrathyridium

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6
Q
A

Mesocestoides larva

FH: Dogs/Foxes

IH: Arthropods (mites & insects)/Lower vertebrates
(frogs, lizards, birds)

Cysticercoid & Tetrathyridium

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7
Q
A

Mesocestoides lineatus

Segments

FH: Dogs/Foxes

IH: Arthropods (mites & insects)/Lower vertebrates
(frogs, lizards, birds)

Cysticercoid & Tetrathyridium

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8
Q
A

Mesocestoides lineatus

Segments

FH: Dogs/Foxes

IH: Arthropods (mites & insects)/Lower vertebrates
(frogs, lizards, birds)

Cysticercoid & Tetrathyridium

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9
Q
A

Taenia sp. & Echinococcus sp.

Similar head part:

  1. Scolex
  2. Hooks
  3. Rostrellum
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10
Q
A

Taenia sp.

Number of hooks is characteristic for each species

IH: Mammals
(larval multiplication in them: occurs or not)

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11
Q
A

Taenia sp.

Number of hooks is characteristic for each species

IH: Mammals
(larval multiplication in them: occurs or not)

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12
Q
A

Taenia sp.

Number of hooks is characteristic for each species

IH: Mammals
(larval multiplication in them: occurs or not)

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13
Q
A

Taenia sp.

IH: Mammals
(larval multiplication in them: occurs or not)

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14
Q
A

Taenia sp.

IH: Mammals
(larval multiplication in them: occurs or not)

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15
Q
A

Taenia sp.

IH: Mammals
(larval multiplication in them: occurs or not)

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16
Q
A

Taenia sp.

1 genital opening in each segment

IH: Mammals
(larval multiplication in them: occurs or not)

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17
Q
A

Taenia sp.

Segments

Left: Immature
Middle: Mature
Right: Gravid with eggs

IH: Mammals
(larval multiplication in them: occurs or not)

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18
Q
A

Taenia sp.

Mature segment
Genitals + One genital opening

IH: Mammals
(larval multiplication in them: occurs or not)

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19
Q
A

Taenia sp.

Mature segment
Genitals + One genital opening

IH: Mammals
(larval multiplication in them: occurs or not)

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20
Q
A

Taenia sp.

IH: Mammals
(larval multiplication in them: occurs or not)

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21
Q
A

Taenia sp.

Mature segment
Genitals + One genital opening

IH: Mammals
(larval multiplication in them: occurs or not)

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22
Q
A

Taenia sp.

Mature segment
Genitals + One genital opening

IH: Mammals
(larval multiplication in them: occurs or not)

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23
Q
A

Taenia sp.

Gravid segment
Full of eggs

IH: Mammals
(larval multiplication in them: occurs or not)

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24
Q
A

Taenia pisiformis

Gravid segment
Full of eggs

FH: Dogs & Foxes

IH: Rabbits & Hares
No larval multiplication in intermediate host

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25
Q
A

Taenia pisiformis

Gravid segment
Full of eggs

FH: Dogs & Foxes

IH: Rabbits & Hares
No larval multiplication in intermediate host

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26
Q
A

Taenia pisiformis

Gravid segment
Colour depends on bile duct colour

FH: Dogs & Foxes

IH: Rabbits & Hares
No larval multiplication in intermediate host

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27
Q
A

Different egg structure of Cestodes
with 6-hooked Oncosphere inside

*Diphyllobothrium has zygote instead of oncosphear*

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28
Q
A

Taenia type egg

6-hooked oncosphere inside

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29
Q
A

Taenia type egg

6-hooked oncosphere inside

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30
Q
A

Taenia type egg

6-hooked oncosphere inside

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31
Q
A

Taenia saginata

Egg

Super tiny

6-hooked oncosphere inside

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32
Q
A

Taenia saginata

Egg

Super tiny

6-hooked oncosphere inside

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33
Q
A

Cysticercus pisiformis

Evaginated, fully developed with opened capsule

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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34
Q
A

Cysticercus pisiformis

Hepatophilic larvae - Haemorrhagic tracks

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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35
Q
A

Cysticercus pisiformis

Hepatophilic larvae - Haemorrhagic tracks

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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36
Q
A

Cysticercus pisiformis

Subacute infection of rabbit liver with developing cysicerci

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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37
Q
A

Cysticercus pisiformis

Mature cysticercus larva developed only on the surface of liver

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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38
Q
A

Cysticercus pisiformis

Liver cross section

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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39
Q
A

Cysticercus pisiformis

Cross section of liver

No cyst wall around cysticercus

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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40
Q
A

Cysticercus pisiformis

Cross section of liver

No cyst wall around cysticercus

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

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41
Q
A

Cysticercus pisiformis

Mature cysticerci on serosal surface of peritoneum

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

42
Q
A

Taenia sp.

Larval hooks are eqiuvalent and exactly as same as that the hooks of the adult worm

43
Q
A

Cysticercus pisiformis

Hooks

Taenia pisiformis

FH: Dogs & Foxes

IH: Rabbits & Hares
No multiplication in intermediate host

44
Q
A

Cysticercus tenuicollis

Surface of liver of deer with a scolex

Taenia hydatigena

FH: Dogs, Wolves, Foxes

IH: Ungultes
No multiplication in intermediate host

45
Q
A

Cysticercus tenuicollis

Taenia hydatigena

FH: Dogs, Wolves, Foxes

IH: Ungultes
No multiplication in intermediate host

46
Q
A

Cysticercus tenuicollis

Taenia hydatigena

FH: Dogs, Wolves, Foxes

IH: Ungultes
No multiplication in intermediate host

47
Q
A

Strobilocercus fasciolaris

Taenia taeniaeformis

FH: Cats

IH: Rodents
No multiplication in intermediate host

48
Q
A

Strobilocercus fasciolaris

Taenia taeniaeformis

FH: Cats

IH: Rodents
No multiplication in intermediate host

49
Q
A

Life cycle of Human tapeworms

Taenia saginata & Taenia solium

FH: Humans

IH: Cattle (saginata), Swine/Humans (solium)

Cysticercus bovis (T. saginata) & Cysticercus cellulosae (T. solium)
No multiplication in intermediate host
50
Q
A

Cysticercus bovis

Taenia saginata

FH: Humans

IH: Cattle
No multiplication in intermediate host

51
Q
A

Cysticercus bovis

Masseter muscle infection

Taenia saginata

FH: Humans

IH: Cattle
No multiplication in intermediate host

52
Q
A

Cysticercus bovis

Heart muscle infection

Taenia saginata

FH: Humans

IH: Cattle
No multiplication in intermediate host

53
Q
A

Cysticercus bovis

Dead cysticercus

Taenia saginata

FH: Humans

IH: Cattle
No multiplication in intermediate host

54
Q
A

Cysticercus bovis

Taenia saginata

FH: Humans

IH: Cattle
No multiplication in intermediate host

55
Q
A

Cysticercus cellulosae

Egg –> L2

Taenia solium

FH: Humans

IH: Swine/Humans
No multiplication in intermediate host

56
Q
A

Cysticercus cellulosae

Heart muscle cross section

Taenia solium

FH: Humans

IH: Swine/Humans
No multiplication in intermediate host

57
Q
A

Cysticercus cellulosae

Heart muscle infection

Taenia solium

FH: Humans

IH: Swine/Humans
No multiplication in intermediate host

58
Q
A

Cysticercus cellulosae

Human eye infection

Taenia solium

FH: Humans

IH: Swine/Humans
No multiplication in intermediate host

59
Q
A

Cysticercus cellulosae

Brain infection

Taenia solium

FH: Humans

IH: Swine/Humans
No multiplication in intermediate host

60
Q
A

Cysticercus cervi

Skeletal muscle infection

Taenia cervi

FH: Foxes, Wolves & Dogs

IH: Red deer, Roe deer
No multiplication in intermediate host

61
Q
A

Cysticercus cervi

Skeletal muscle infection

Taenia cervi

FH: Foxes, Wolves & Dogs

IH: Red deer, Roe deer
No multiplication in intermediate host

62
Q
A

Cysticercus longicollis

Abdominal cavity of rodent

Taenia crassiceps

FH: Foxes

IH: Rodents
Larval multiplication with external budding in intermediate host

63
Q
A

Cysticercus longicollis

Taenia crassiceps

FH: Foxes

IH: Rodents
Larval multiplication with external budding in intermediate host

64
Q
A

Cysticercus longicollis

Taenia crassiceps

FH: Foxes

IH: Rodents
Larval multiplication with external budding in intermediate host

65
Q
A

Cysticercus longicollis

Larva in human eye

Taenia crassiceps

FH: Foxes

IH: Rodents
Larval multiplication with external budding in intermediate host

66
Q
A

Coenurus cerebralis

Taenia multiceps

FH: Dogs

IH: Sheep
Larval multiplication with internal budding in intermediate host

67
Q
A

Coenurus cerebralis

Taenia multiceps

FH: Dogs

IH: Sheep
Larval multiplication with internal budding in intermediate host

68
Q
A

Coenurus cerebralis

Brain infection

Taenia multiceps

FH: Dogs

IH: Sheep
Larval multiplication with internal budding in intermediate host

69
Q
A

Coenurus cerebralis

Opisthotonus

Taenia multiceps

FH: Dogs

IH: Sheep
Larval multiplication with internal budding in intermediate host

70
Q
A

Coenurus serialis

In CT under skin and among muscles

Taenia serialis

FH: Dogs, Wolves & Foxes

IH: Rabbits & Hares
Larval multiplication with internal budding in intermediate host

71
Q
A

Echinococcus granulosus & Echinococcus multilocularis

FH: Canines

IH: Mammals

Larval echinococcus

e. hydatidosus (E. granulosus) –> Unilocular hydatid cyst

e. alveolaris (E. multilocularis) –> Alveolar hydatid cyst
* *Larval multiplication** with exogenous and endogenous budding in intermediate host

72
Q
A

Echinococcus granulosus

Adult worm - 3 segments

FH: Canines

IH: Mammals

Larval echinococcus

echinococcus hydatidosus –> Unilocular hydatid cyst
Larval multiplication with exogenous and endogenous budding in intermediate host

73
Q
A

Echinococcus granulosus

Adult worm - 3 segments

FH: Canines

IH: Mammals

Larval echinococcus

echinococcus hydatidosus –> Unilocular hydatid cyst
Larval multiplication with exogenous and endogenous budding in intermediate host

74
Q
A

Echinococcus granulosus

Adult worm - 3 segments

FH: Canines

IH: Mammals

Larval echinococcus

echinococcus hydatidosus –> Unilocular hydatid cyst
Larval multiplication with exogenous and endogenous budding in intermediate host

75
Q
A

Life cycle of
Echinococcus granulosus&Echinococcus multilocularis

FH: Canines

IH: Mammals

Larval echinococcus

e. hydatidosus (E. granulosus) –> Unilocular hydatid cyst

e. alveolaris (E. multilocularis) –> Alveolar hydatid cyst
* *Larval multiplication** with exogenous and endogenous budding in intermediate host

76
Q
A

Echinococcus granulosus/Echinococcus multilocularis

Adult worms in the intestine

FH: Canines

IH: Mammals

Larval echinococcus

e. hydatidosus (E. granulosus) –> Unilocular hydatid cyst

e. alveolaris (E. multilocularis) –> Alveolar hydatid cyst
* *Larval multiplication** with exogenous and endogenous budding in intermediate host

77
Q
A

Echinococcus granulosus

Adult worm in the intestine - 3 segments

FH: Canines

IH: Mammals

Larval echinococcus

e. hydatidosus (E. granulosus) –> Unilocular hydatid cyst

e. alveolaris (E. multilocularis) –> Alveolar hydatid cyst
* *Larval multiplication** with exogenous and endogenous budding in intermediate host

78
Q
A

Taenia type eggs

6-hooked oncosphere inside

79
Q
A

Echinococcus hydatidosus

Protoscolex

Unilocular hydatid cyst

Echinococcus granulosus

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

80
Q
A

Cysticercous Vs. Echinococcus

The wall around a cysticercous larval is always missing

81
Q
A

Echinococcus hydatidosus

Hydatid cyst in lung

Cysticercous Vs. Echinococcus
​The wall around a hydatid larval is always multi layered

Echinococcus granulosus

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

82
Q
A

Echinococcus hydatidosus

Hydatid cyst (& Dicrocoelium) in liver
Hydatid cyst has brood caps, Dicrocoelium has eggs

Echinococcus granulosus

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

83
Q
A

Echinococcus cyst
​The wall around a hydatid larval is always multi layered

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

84
Q
A

Dicrocoelium cyst
Eggs inside

85
Q
A

Echinococcus cyst

​Brood caps inside

86
Q
A

Echinococcus hydatidosus

Hydatid cyst (& Dicrocoelium) in liver
Hydatid cyst has brood caps, Dicrocoelium has eggs

Echinococcus granulosus

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

87
Q
A

Echinococcus hydatidosus

Collapsed hydatid cyst in liver
Hydatid cyst has brood caps, Dicrocoelium has eggs

Echinococcus granulosus

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

88
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

89
Q
A

Cysticercosis

Cysts are sitting on capsule of liver

(Echinococcosis: cysts are sunken into parenchyma )

90
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

91
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

92
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

93
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

94
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

95
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

96
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

97
Q
A

Echinococcosis

Cysts are sunken into parenchyma

(Cysticercosis: cysts are sitting on capsule of liver)

98
Q
A

Echinococcus alveolaris

Alveolar hydatid cyst

Echinococcus multilocularis

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

99
Q
A

Echinococcus alveolaris

Sterile form of alveolar echinococcosis:
gelatinous mass in caverns

Echinococcus multilocularis

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

100
Q
A

Echinococcus alveolaris

Fertile form of alveolar echinococcosis:
protoscolex in caverns

Echinococcus multilocularis

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate host

101
Q
A

Echinococcus alveolaris

Alveolar hydatid cyst

Echinococcus multilocularis

FH: Canines

IH: Mammals
Larval multiplication with exogenous and endogenous budding in intermediate

102
Q
A

Echinococcus alveolaris

Alveolar hydatid cyst

Echinococcus multilocularis

FH: Canines

IH: Mammals
Larval multiplication with e_xogenous and endogenous budding_ in intermediate

Parasitology II UNIVET (6 decks)

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