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Parasitology II UNIVET > Trematodes - Flukes > Flashcards

Trematodes - Flukes Flashcards

1
Q
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Fasciolosis

Fasciola

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2
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Hepatic Fasciolosis

Fasciola gigantea

More elongated shape than hepatica

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3
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Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

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4
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Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

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5
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Hepatic Fasciolosis

Fascioloides magna - Large American liver fluke / Deer fluke

Caverns in the liver of Red deer

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6
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Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Cross section in biliary duct

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7
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Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Haemorrhagic tracks on the liver of a sheep

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8
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Acute Fasciolosis - Haemorrhages on the serosa

Fasciola hepatica - Common liver fluke

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9
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Chronic Hepatic Fasciolosis

Destroyed biliary duct mucosa layer and thickened walls

Cross section

Fasciola hepatica - Common liver fluke

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10
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Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Cross section in the liver

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11
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Hepatic Fasciolosis

Haemorrhagic tracks of migrating flukes in the liver

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12
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A

Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

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13
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Chronic Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Flukes inside the opened biliary duct

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14
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A

Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Eggs (Preserved eggs)

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15
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Hepatic Fasciolosis

Fasciola spp.

Liver

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16
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Hepatic Fasciolosis

Fasciola spp.

Chronic clinical sign = submandibular oedema due to hypoalbunaemia

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17
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Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

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18
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A

Hepatic Fasciolosis

Fasciola hepatica VS Fasciola gigantea

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19
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A

Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

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20
Q
A

Hepatic Fasciolosis

Fasciola hepatica VS Fasciola gigantea

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21
Q
A

Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Liver fluke cross section with digested blood

The fluke’s GI ducts look empty in section (white)

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22
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A

Galba truncatula - Freshwater snail

Intermediate host of: Fasciola spp. & Caliphoron spp.

Snails are always covered in & with mud

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23
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Hepatic Fascioloidosis

Fascioloides magna - Large American liver fluke / Deer fluke

Cross section of liver

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24
Q
A

Galba truncatula - Freshwater snail

Intermediate host of: Fasciola spp. & Caliphoron spp.

Infected snail

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25
Q
A

Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Liver fluke on ectopic place: in the lung

Cross section

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26
Q
A

Hepatic Fascioloidosis

Fascioloides magna - Large American liver fluke / Deer fluke

Cross section of liver

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27
Q
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Freshwater snails - Intermediate host of

Left: Radix labiata - Fasciola spp.

Middle: Galba truncatula - Fasciola spp. & Calicophoron spp.

Right: Succinella oblonga (None)

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28
Q
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Paramphistomosis

Paramphistomum spp. / Calicophoron spp.

Rumen flukes in the rumen

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29
Q
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Paramphistomosis

Paramphistomum spp. / Calicophoron spp.

Rumen flukes in the reticulum

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30
Q
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Paramphistomosis

Paramphistomum spp. / Calicophoron spp. - Rumen flukes

Ventral sucker is always bigger than the oral sucker

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31
Q

Paramphistomosis

List the Genera, Species and Susceptible hosts

A

Paramphistomum

  • P. ichikawai –> wild Ruminants
  • P. cervi –> Sheep, Goat, wild Ruminants
  • P. leydeni

Calicophoron

  • C. daubneyi –> Cattle
  • C. microbothrioides
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32
Q
A

Paramphistomosis

Paramphistomum spp. / Calicophoron spp. - Rumen flukes

Ventral sucker is always bigger than the oral sucker

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33
Q
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Paramphistomosis

Calicophoron daubneyi​ - Rumen fluke

Arrow point at the head

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34
Q
A

Paramphistomosis

Calicophoron daubneyi​ - Rumen fluke

Arrow point at the head

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35
Q
A

Paramphistomosis

Calicophoron daubneyi​ - Rumen fluke

Ventral sucker is always bigger than the oral sucker

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36
Q
A

Paramphistomosis

Calicophoron daubneyi - Rumen fluke

Ventral sucker

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37
Q
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Paramphistomosis

Paramphistomum egg - Rumen fluke egg

Unembryonated egg collected from fresh feces
Eccentric zygote is surrounded by coarse yolk granules

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38
Q
A

Planorbis spp. - Amphibious snail

Intermediate Host of: Paramphistomum spp. - Rumen fluke

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39
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Paramphistomosis

Paramphistomum spp. / Calicophoron spp.

Erosions of the duodenal mucosa by young rumen flukes that move inside the mucosal layer

40
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A

Paramphistomosis

Paramphistomum spp. / Calicophoron spp.

Developing rumen flukes on the wall of abomasum while move towards the rumen

41
Q
A

Paramphistomosis

Paramphistomum spp. / Calicophoron spp. - Rumen flukes

Arrow points at papilla

42
Q
A

Paramphistomosis

Paramphistomum spp. / Calicophoron spp.

Rumen flukes among papillae of rumen

43
Q
A

Paramphistomosis

Paramphistomum spp. / Calicophoron spp. - Rumen flukes

Destroyed, button like papillae among normal ones on the wall of forestomach

44
Q
A

Paramphistomosis

Paramphistomum spp. / Calicophoron spp. - Rumen flukes

Destroyed, button like papillae among normal ones on the wall of forestomach

45
Q
A

Small flukes: Dicrocoelium dendriticum - Lancet fluke

Large fluke: Liver fluke (with blood inside)

46
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Eggs with Miracidium inside

47
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

48
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Adult worm

Two large testicles and the smaller ovary - behind ventral sucker
Yolk glands are lined up on both sides of the worm

49
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Stained - Intestines never contain blood
Black spots are eggs

50
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

51
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

52
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Transverse section of D. dendriticum in a biliary duct of a hare

Never blood inside - Black spots are eggs

53
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Eggs can be seen as they are dark

54
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Section of Lancet fluke in liver without eggs

55
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Section of Lancet fluke in liver with eggs

56
Q
A

Chronic Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Thickened bile ducts

57
Q
A

Chronic Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Thickened bile ducts on a cutted surface

Red: Bile ducts

Blue: Liver vessels

58
Q
A

Xerolenta obvia - Landsnail

First Intermediate Host of: Dicrocoelium dendriticum
- Lancet fluke

59
Q
A

Landsnails

First Intermediate Host of: Dicrocoelium dendriticum
- Lancet fluke

60
Q
A

Landsnails

First Intermediate Host of: Dicrocoelium dendriticum
- Lancet fluke

Mucus production spreading Metacercariae

61
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Metacercaria with 2 suckers and thick wall

62
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Cercaria with styler = Xiphidocercaria

63
Q
A

Schistosomiasis

Schistosoma turkestanicum - Blood fluke

Host: Deer

Large fluke - Male

Slim fluke - Female

64
Q
A

Schistosomiasis

Schistosoma turkestanicum - Blood fluke

Host: Deer

Site: Mesenteric and Hepatic veins

65
Q
A

Schistosomiasis

Schistosoma turkestanicum - Blood fluke

Host: Deer

Site: Mesenteric and Hepatic veins

66
Q
A

Schistosomiasis

Human Schistosome - Blood fluke

S. mattheei: Hosts: Ruminants, Zebra, Human
Site: intestinal, hepatic and bladder veins

S. japonicum: Hosts: Ruminants, Human
Site: portal and mesenteric veins

S. mansoni: Host: Human
Site: intestinal schistosomosis

S. haematobium: Host: Human
Site: urinary or bladder schistosomosis

67
Q
A

Schistosomiasis

Blood fluke

Cross section of liver - Male schistosoma in hepatic vein

S. mattheei: Hosts: Ruminants, Zebra, Human
Site: intestinal, hepatic and bladder veins

S. turkestanicum Host: Deer
Site: mesenteric and hepatic veins

68
Q
A

Schistosomiasis

Schistosoma spp. - Blood fluke

Asymmetrical eggs of blood flukes can penetrate the tissues and cause lessions that destroy the blood vessels

69
Q
A

Schistosomiasis

Schistosoma spp. - Blood fluke

Egg

70
Q
A

Oncomelania hupensis - Prosobranchia snail

Intermediate Host of: Schistosoma japonicum
–> Ruminants, Human

71
Q
A

Pulmonate snails

Bullinus nyassanus, Bulinus globosus, Melanoides spp.

Intermediate Hosts of: Schistosoma haematobium –> Human

72
Q
A

Pulmonate snails

Biomphalaria spp.

Intermediate Hosts of: Schistosoma mansoni –> Human

73
Q
A

Schistosomiasis

Schistosoma spp. - Blood fluke

Furcocercaria
(in the final host)

74
Q

List the Species and their Hosts of Blood flukes

A

Schistosomiasis

Blood flukes - Schistocoma spp.

S. turkestanicum: Host: Deer
Site: mesenteric and hepatic veins

S. bovis: Hosts: Cattle, Sheep, Goat
Site: portal, mesenteric and urogenital veins

S. mattheei: Hosts: Ruminants, Zebra, Human
Site: intestinal, hepatic and bladder veins

S. japonicum: Hosts: Ruminants, Human
Site: portal and mesenteric veins

S. mansoni: Host: Human
Site: intestinal schistosomosis

S. haematobium: Host: Human
Site: urinary or bladder schistosomosis

75
Q
A

Schistosomiasis

Schistosoma spp. - Blood fluke

Cercarial dermatitis - Swimming itch

Skin eruptions caused by larvae of non-human blood flukes

76
Q
A

Schistosomiasis

Schistosoma spp. - Blood fluke

Cercarial dermatitis - Swimming itch

Skin eruptions caused by larvae of non-human blood flukes

77
Q
A

Hepatic Fasciolosis

Life cycle of Fasciola spp.

1: Mature worm
2: Eggs with zygote & miracidium
3: Free miracidium
4: Sporocyst, Redia, Cercaria in snail
5: Free cercaria
6: Metacercaria

78
Q
A

Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Non-embryonated egg in fresh feacal sample

79
Q
A

Hepatic Fasciolosis

Fasciola hepatica - Common liver fluke

Cercaria

80
Q
A

Secondary biotopes

Puddles in roads or in pastures
Hoof marks in the mud or wallowing sites

Galba truncatula produce extremely dense populations

Main source of heavy fasciolosis

81
Q
A

Paramphistomosis

Planorbis sp., Segmentina sp., Anisus sp.

Intermediate Hosts of: Paramphistomum spp.

82
Q
A

Dicrocoeliosis

Dicrocoelium dendriticum - Lancet fluke

Eggs with Miracidium inside

83
Q
A

Ants
Formica spp.

Second Intermediate Host of: Dicrocoelium dendriticum
- Lancet fluke

84
Q
A

Chronic Hepatic Fasciolosis

Fasciola spp.

Adult flukes in the enlarged and opened bile duct of a cattle liver

85
Q
A

Miracidium

Fascioloides magna - American liver fluke / Deer fluke

86
Q
A

Sporocyst with rediae inside

87
Q
A

Sporocyst with rediae inside

88
Q
A

Redia

89
Q
A

Redia

90
Q
A

Cercaria

91
Q
A

Furcocercaria

Schistosoma spp. - Blood fluke

92
Q
A

Metacercariae left by snail

93
Q
A

Metacercariae left by snail

94
Q
A

Metacercariae

95
Q
A

Metacercaria

96
Q
A

Young fluke - migrant form

Parasitology II UNIVET (6 decks)

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