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Microbiology > GI: Nematodes and Cestodes > Flashcards

GI: Nematodes and Cestodes Flashcards

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Biology 101 flashcards
1
Q

Giant roundworm

A

Nematode - Ingested - Intestine

Ascariasis

Ascaris lumbricoides

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2
Q

Pinworm

A

Nematode - Ingested - Intestine

Pinworm

Enterobius vermicularis

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3
Q

Beef tapeworm

A

Cestode - Ingested - Intestine

Taenia saginata

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4
Q

Pork tapeworm

A

Cestode - Ingested - Intestine / Tissue

Taenia solium

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5
Q

Freshwater Fish tapeworm

A

Cestode - Ingested - Intestine

Diphyllobothrium latum

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6
Q

Trichinosis

A

Nematode - Ingested - Tissue

Trichinella spiralis

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7
Q

Dog tapeworm

A

Cestode - Ingested - Tissue

Echinococcus granulosus

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8
Q

Stongyloidiasis

A

Nematode - Contact - Inestine

Stongyloides stercoralis

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9
Q

Hookworm

A

Nematode - Contact - Intestine

Necator americanus
and
Ancylostoma duedenale

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10
Q

Schistosomiasis, Katayama Fever

A

Trematode (Fluke) - Contact - Tissue

Schistosoma species

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11
Q

Undercooked Fish Fluke

A

Trematode - Ingested - Intestine

Clonorchis sinensis

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12
Q

River Blindness

A

Nematode - Bite - Tissue

Onchocerca volvulus

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13
Q

Filariasis, Elephantiasis

A

Nematode - Bite - Tissue

Wuchereria bancrofti

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14
Q

Eye worm

A

Nematode - Bite - Tissue

Loa Loa Filariasis

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15
Q

Dog roundworm

A

Nematode - Ingested - Tissue

Toxocara canis

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16
Q
  • “Perianal pruritus” or “Perianal itchiness”
  • “Scotch-tape test”
  • Feces: eggs /w smooth outer surface
A
  • Enterobius Vermiculas (Pinworm)
  • Tx:
    • Bendazoles (Melbendazole)
    • Pyrantel Pamoate
17
Q
  • Intestinal infection
  • A/w Resperatory inflammation –> pneumonia
  • Eosinophilia
  • Intestinal occlusion (wormball)
  • Biliary obstruction
  • Feces: eggs w/ rough surface
A
  • Ascaris lumbridoides (Giant roundworm, Ascariasis)
  • Tx:
    • Melbendazole
    • Pyrantel pamoate
    • Albendazole
18
Q
  • Intestinal infection causes Vomiting, Diarrhea, Epigastric pain (Peptic ulcer like)
  • Gastroenteritis
  • Eosinophilia
  • Asymptomatic autoinfection
  • A/w pneumonia
  • Feces: Larvae
A
  • Strongyloides stercoralis
  • Tx:
    • Ivermectin or Albendazole (Thiavendazole)
19
Q
  • “Microcytic anemia”
  • Intestinal infection causing Anemia by sucking blood from the Intestinal wall
  • Gastroenteritis
  • Eosinophilia
  • Anemia
  • A/w Pneumonia
  • Feces: Eggs
A
  • Ancylostoma duodenale (Hookworms)
  • Necator americanus (Microcytic anemia) (Hookworms)
  • Tx:
    • Bendazoles (Melbandazole)
    • Pyrantel pamoate
    • Fe2+ and Folic acid for a/ Anemia
20
Q
  • Hyperpigmented skin (Black skin nodules)
  • Female Blackfly bite
  • River blindness - Black eyes
  • Allergic Rxn to Microfilaria
  • Skin biopsy: Microfilariae
A
  • Onchocerca volvulus (River blindness)
  • Tx:
    • Ivermectin
    • Surgery to remove cysts
21
Q
  • Swelling in skin
  • Worm in the Eye’s conjuctiva
  • Dear fly, Horse fly, Mango fly
A
  • Loa Loa
  • Tx:
    • Diethylcarbamazine
22
Q
  • Blocks lymphatic vessels
  • -> Elephantiasis
  • 9 months - 1 year after bite to become symptomatic
  • Female mosquito
A
  • Wucheria bancrofti (Filariasis, Elephantiasis)
  • Tx:
    • Diethylcarbamazine
23
Q
  • “Brain cysts, seizures”
  • Ingestion of larvae encysted in undercooked pork
  • Ingestion of eggs
  • Feces: Proglottids eggs
A
  • Taenia solium (Pork tapeworm) (Cysticercosis)
  • Tx:
    • Niclosamid + Cathartic
    • Praziquantel
    • Tissue: Cysticercosis, Neurocysticercosis
      • Praziquantel
      • Albendazole for Neurocysticercosis
24
Q
  • “Vitamin B12 deficiency”
  • Anemia
A
  • Diphyllobothrium latum (Fish tapeworm)
25
Q
  • “Liver (hydatid) cysts”
  • Echinoccossis
  • Hydatid cyst disease of the Liver, Lung, Brain
  • X-ray / CT to confirm
  • Sheepherders and Sheepdogs
A
  • Echinococcus granulosus (Dog tapeworm)
  • Tx:
    • Alendazole
    • Surgery
26
Q
  • “Hematurisa, Bladder cancer”
  • “Portal Hypertension”
  • Bladder SCC
  • Itchiness at site of infection
  • Fever / Chills - RUQ pain
  • Fatigue, Bloody diarrhea
  • Lymphadenopathy
  • Periportal fibrosis
  • Intestinal polyps
  • Hematuria
  • Snailes
  • Feces: Eggs
A
  • Schistosoma species (Schistosomiasis)
  • Hematuria, bladder cancer –> S. haematobium
  • Portal Hypertension –> S. mansomi, S. japonicum
  • Tx:
    • Praziquantel
27
Q
  • “Biliary tract disease, Cholangiocarcinoma”
  • Biliary tract inflammation –> Pigmented gallstone
A
  • Clonorchis sinensis
  • Tx:
    • Praziquantel
28
Q

Ingested Intestinal

Nematodes (Roundworms)?

Cestodes (Tapeworms)?

A
  • Nematodes (Roundworms)?
    • Ascaris lumbricoides (Giant roundworms)
    • Enterobius vermicularis (Pinworms)
    • Toxocara canis (Dog roundworms)
  • Cestodes (Tapeworms)?
    • Taenia saginata (Beef tapeworms)
    • Taenia solium (Pork tapeworms)
    • Diphyllobothrium latum (Fish tapeworms)
29
Q

Ingested Tissue

Nematodes (Roundworms)?

Cestodes (Tapeworms)?

A
  • Nematodes (Roundworms)
    • Trichinella spiralis (Trichinosis)
  • Cestodes (Tapeworms)
    • Echinococcus granulosus (Dog tapeworms)
    • Taenia solium (Pork tapeworms)
    • Diphyllobothrium latum (Fish tapeworm)
30
Q

Transmitted by Contact

Nematodes (Roundworms) - Intestine?

Trematodes (Flukes) - Tissue?

A
  • Nematodes (Roundworms) - Intestine
    • Strongyloides stercoralis
    • Necator americanus
    • Ancylostoma duodenale
  • Trematodes (Flukes) - Tissue
    • Schistosoma species
      • S. Haematobium
      • S. mansoni
      • S. japonicum
    • Clonorchis sinensis
31
Q

Transmitted by bite

Nematode (Roundworms)?

A
  • Nematodes (Roundworms)
    • Onchocerca volvulus (River blindness)
    • Loa Loa
    • Wuchereria bancrofti (Filariasis, Elephantiasis)
32
Q

Liver Flukes?

A
  • Opisthorchiidae
    • Chlonorchis sinensis
    • Opistorchis viverrini
    • Opistorchis felineus
  • Fasciolidae
    • Fasciola
  • Blood Flukes
    • Schistosoma
      • S. mansoni
      • S. japonicum
      • S. haematobium
33
Q

Schistosomes geographic locations?

A

S. haemotobium –> Africa, Middle East

S. mansoni –> Africa, Middle East, South America

S. japonicum –> East Asia

Microbiology (6 decks)

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