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DTMH - Parasitology & Entomology Slides > Zoonotic nematodes > Flashcards

Zoonotic nematodes Flashcards

Echinococcus, Toxocariasis

1
Q
  1. Name this parasite to the genus level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus spp.
  2. Presence of characteristic liberated protoscoleces that are invaginated
  3. Dogs (granulosus, multilocularis), foxes (multilocularis)
  4. Sheep (granulosus), rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
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2
Q
  1. Name this parasite (size: 67 um) to the species level
  2. State your reasons
  3. Name one definitive host
  4. Name one drug used to treat infection with this parasite
A
  1. Toxocara cati
  2. Characteristic spherical eggs with golden colour, a thick shell with a pitted surface, and within the size range (65-75 um) for T. cati
  3. Cats
  4. Albendazole
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3
Q

This specimen was obtained from a single compartment hepatic cyst ~7 cm

  1. Name this parasite to the species level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus granulosus
  2. Presence of characteristic protoscoleces with refracticle hooks within the host tissue encapsulating the acellular cyst wall
  3. Dogs
  4. Sheep
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
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4
Q
  1. Name this parasite to the species level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus multilocularis
  2. Presence of numerous characteristic protoscoleces with visible hooklets in a vesicular, multi-chambered cyst
  3. Foxes (multilocularis)
  4. Rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
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5
Q
  1. Name this parasite (size: 2.5 mm) to the genus level
  2. State your reasons
A
  1. Trichinella spp
  2. Nematode within size range (2-3 mm) of adult Trichinella female worms more slender at the anterior end than the posterior end
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6
Q
  1. Name this parasite (size: 84 um) to the species level
  2. State your reasons
  3. Name one definitive host
  4. Name one drug used to treat infection with this parasite
A
  1. Toxocara cani
  2. Characteristic spherical eggs with golden colour, a thick shell with a pitted surface, and within the size range (80-85 um) for T. cani
  3. Dogs
  4. Albendazole
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7
Q

This is a histological section of muscle

  1. Name the parasite to the genus level
  2. What is the disease caused by this parasite
  3. State your reasons
  4. Name one reservoir
  5. Name two drugs used to treat this disease
A
  1. Trichinella spp.
  2. Trichinellosis
  3. Presence of encysted larvae within muscle tissue
  4. Bears, pigs, rodents, boars
  5. Albendazole, prednisone (to control inflammation)
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8
Q
  1. Name this parasite to the genus level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus spp.
  2. Presence of characteristic protoscoleces with refractile hooklets
  3. Dogs (granulosus, multilocularis), foxes (multilocularis)
  4. Sheep (granulosus), rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
How well did you know this?
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9
Q

This is a histological section of muscle

  1. Name the parasite to the genus level
  2. What is the disease caused by this parasite
  3. State your reasons
  4. Name one reservoir
  5. Name two drugs used to treat this disease
A
  1. Trichinella spp.
  2. Trichinellosis
  3. Presence of encysted larvae within muscle tissue with immature reproductive tubules (RT), intestine (IN), lateral chords (LC), and nucleated stichocyte (ST).
  4. Bears, pigs, rodents, boars
  5. Albendazole, prednisone (to control inflammation)
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10
Q
  1. Name this parasite to the species level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus multilocularis
  2. Presence of numerous characteristic protoscoleces in a vesicular, multi-chambered cyst
  3. Foxes (multilocularis)
  4. Rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
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11
Q
  1. Name this parasite to the genus level (size: 8 cm)
  2. What’s the lifecycle stage
  3. State your reasons
A
  1. Toxocara cati
  2. Adult
  3. Characteristic 3 lips of ascarid worms and cervical ‘spear-like’ alae of T. cati adults within the size range (6-10 um) for T. cati adult females
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12
Q

This is a histological section of meat eaten by an ill patient

  1. Name this parasite to the genus level
  2. State your reasons
A
  1. Trichinella spp.
  2. Presence of encapsulated, coiled larvae within the tissue and nucleated stichocytes (arrows)
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13
Q
  1. Name this parasite to the species level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus multilocularis
  2. Presence of numerous characteristic protoscoleces with visible hooklets in a vesicular, multi-chambered cyst
  3. Foxes (multilocularis)
  4. Rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
How well did you know this?
1
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14
Q
  1. Name this parasite to the genus level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus spp.
  2. Presence of characteristic protoscoleces with refractile hooklets
  3. Dogs (granulosus, multilocularis), foxes (multilocularis)
  4. Sheep (granulosus), rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
How well did you know this?
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15
Q

This is a histological section of muscle

  1. Name the parasite to the genus level
  2. What is the disease caused by this parasite
  3. State your reasons
  4. Name one reservoir
  5. Name two drugs used to treat this disease
A
  1. Trichinella spp.
  2. Trichinellosis
  3. Presence of encysted larvae within muscle tissue with immature reproductive tubules (RT), intestine (IN), lateral chords (LC), and nucleated stichocyte (ST).
  4. Bears, pigs, rodents, boars
  5. Albendazole, prednisone (to control inflammation)
How well did you know this?
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16
Q
  1. Name this parasite (size: 72 um) to the species level
  2. State your reasons
  3. Name one definitive host
  4. Name one drug used to treat infection with this parasite
A
  1. Toxocara cati
  2. Characteristic spherical eggs with golden colour, a thick shell with a pitted surface, and within the size range (65-75 um) for T. cati
  3. Cats
  4. Albendazole
17
Q

This is a histological section from an eye

  1. Name the parasite (size: 17 um diameter) to the genus level
  2. Name the disease this causes
  3. State your reasons
  4. Name two drugs that should be provided to this patient
A
  1. Toxocara spp.
  2. Ocular toxocariasis
  3. Larvae within the size range (15-20 um diameter) for Toxocara larvae and with prominent lateral alae and two excretory columns
  4. Albendazole, Corticosteroid (to reduce inflammation and potential loss of vision)
18
Q
  1. Name this parasite to the genus level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus spp.
  2. Presence of characteristic liberated protoscoleces with some (on the right) that are evaginated
  3. Dogs (granulosus, multilocularis), foxes (multilocularis)
  4. Sheep (granulosus), rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
19
Q

This is a histological section of muscle

  1. Name the parasite to the genus level
  2. What is the disease caused by this parasite
  3. State your reasons
  4. Name one reservoir
  5. Name two drugs used to treat this disease
A
  1. Trichinella spp.
  2. Trichinellosis
  3. Presence of encysted larvae within muscle tissue
  4. Bears, pigs, rodents, boars
  5. Albendazole, prednisone (to control inflammation)
20
Q
  1. Name this parasite to the genus level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus spp.
  2. Presence of characteristic protoscoleces with refractile hooklets
  3. Dogs (granulosus, multilocularis), foxes (multilocularis)
  4. Sheep (granulosus), rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
21
Q

This specimen was obtained from a single compartment hepatic cyst ~7 cm

  1. Name this parasite to the species level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus granulosus
  2. Presence of characteristic protoscoleces with refracticle hooks
  3. Dogs
  4. Sheep
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure
22
Q
  1. Name this parasite (egg size: 67 um; parasite: 380 um) to the species level
  2. What is the lifecycle stage
  3. State your reasons
  4. Name two diseases this parasite causes
  5. Name one drug used to treat disease with this parasite
A
  1. Toxocara cati
  2. Larva (Third-stage L3 which develop in ovo)
  3. Third-stage larva within the size range (350-400 um) for Toxocara spp. and with an esophagus ~1/3 of body length. Hatching from an egg within the size range (65-75 um) of T. cati with characteristic thich shell and pitted surface
  4. Visceral Larva Migrans, Ocular Toxocariasis
  5. Albendazole
23
Q
  1. Name this parasite (size: 82 um) to the species level
  2. State your reasons
  3. Name one definitive host
  4. Name one drug used to treat infection with this parasite
A
  1. Toxocara cani
  2. Characteristic spherical eggs with golden colour, a thick shell with a pitted surface, and within the size range (80-85 um) for T. cani
  3. Dogs
  4. Albendazole
24
Q
  1. Name this parasite (size: 71 um) to the species level
  2. State your reasons
  3. Name one definitive host
  4. Name one drug used to treat infection with this parasite
A
  1. Toxocara cati
  2. Characteristic spherical eggs with golden colour, a thick shell with a pitted surface, and within the size range (65-75 um) for T. cati
  3. Cats
  4. Albendazole
25
Q

This is a histological section of muscle

  1. Name the parasite to the genus level
  2. What is the disease caused by this parasite
  3. State your reasons
  4. Name one reservoir
  5. Name two drugs used to treat this disease
A
  1. Trichinella spp.
  2. Trichinellosis
  3. Presence of encysted larvae within muscle tissue
  4. Bears, pigs, rodents, boars
  5. Albendazole, prednisone (to control inflammation)
26
Q
  1. Name this parasite to the genus level
  2. State your reasons
  3. Name one definitive host for this parasite
  4. Name one intermediate host for this parasie
  5. Name one drug used to treat infection with this parasite
A
  1. Echinococcus spp.
  2. Presence of characteristic protoscolex with visiible hooklets
  3. Dogs (granulosus, multilocularis), foxes (multilocularis)
  4. Sheep (granulosus), rodents (multilocularis)
  5. Albendazole (for single, simple small cysts or in combination with Percutaneous Aspiration Injection Reaspiration (PAIR) procedure

DTMH - Parasitology & Entomology Slides (20 decks)

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