Parasitology Flashcards Preview

First Aid: Microbiology > Parasitology > Flashcards

Flashcards in Parasitology Deck (55):
1

Protozoa - GI infections

  • Giardia lamblia 
  • Entamoeba histolytica 
  • Cryptosporidium 

2

Protozoa - CNS infections

  • Toxoplasma gondii
  • Naegleria fowleri 
  • Trypanosoma brucei 

3

Protozoa - Hematologic infections 

  • Plasmodium
    • P. vivax/ovale
    • P. falciparum
    • P. malariae 
  • Babesia 

4

Protozoa - Visceral infections 

  • Trypanosoma cruzi 
  • Leishmania donovani 

5

Protozoa - STDs

Trichomonas vaginalis 

6

Nematodes - intestinal 

  • Enterobius vermicularis (pinworm)
  • Ascaris lumbricoides (giant roundworm)
  • Strongyloides stercoralis 
  • Ancylostoma duodenale, Necator americanus (hookworms)

7

Nematodes - tissue 

  • Onchocerca volvulus 
  • Loa loa 
  • Wuchereria bancrofti 
  • Toxocara canis 

8

Ingested nematodes 

You'll get sick if you EAT these!

  • Enterobius 
  • Ascaris
  • Toxocara 

9

Cutaneous nematodes 

These get into your feet from the SANd

  • Strongyloides
  • Ancylostoma
  • Necator 

10

Nematodes that bite

Lay LOW to avoid getting bitten

  • Loa loa
  • Onchocerca volvulus 
  • Wuchereria bancrofti 

11

Cestodes (tapeworms)

  • Taenia solium
  • Diphyllobothrium latum
  • Echinococcus granulosus 

12

Trematodes (flukes)

  • Schistosoma 
  • Clonorchis sinesis 

13

biliary tract disease

cholangiocarcinoma 

Clonorchis sinesis 

14

brain cysts, seizures

Taenia solium (cysticercosis)

15

hematuria, bladder cancer 

Schistosoma haematobium 

16

liver (hydatid) cysts

Echinococcus granulosus 

17

microcytic anemia 

Ancylostoma, Necator 

18

perianal pruritis 

Enterobius 

19

portal HTN

Schistosoma mansoni 

Schistosoma japonicum 

20

vitamin B12 deficiency 

Diphyllobothrium latum 

21

Giardiasis 

Giardia lamblia 

  • bloating, flatulence, foul-smelling, fatty diarrhea
  • campers/hikers 

22

Amebiasis 

Entamoeba histolytica 

  • bloody diarrhea (dysentery)
  • liver abscess (“anchovy paste” exudate)
  • RUQ pain (flank-shaped ulcer w/ colon rupture)

23

clinical disease of cryptosporidium

severe diarrhea in AIDS

mild disease (watery diarrhea) in immunocompetent 

24

classic triad of congenital toxoplasmosis 

  • chorioretinitis
  • hydrocephalus
  • intracranial calcifications 

25

brain abscess in HIV

ring-enhancing brain lesions on CT/MRI

Toxoplasma gondii

26

clinical disease of Naegleria fowleri 

rapidly fatal meningoencephalitis 

27

African sleeping sickness 

Trypanosoma bruceii 

  • enlarged lymph nodes
  • recurring fever
  • somnolence
  • coma 

28

swimming in freshwater lakes

enters via cribriform plate 

Naegleria fowleri 

29

clinical subtypes of Plasmodium 

  • Malaria 
  • P. vivax/ovale
  • P. falciparum
  • P. malariae 

30

malaria 

  • fever 
  • headache 
  • anemia  
  • splenomegaly 

31

P. falciparum

  • severe
  • irregular fever patterns
  • parasitized RBCs occlude capillaries in brain (cerebral malaria), kidneys, lungs 

32

Plasmodium

  • 48 hr cycle
  • 72 hr cycle 

  • 48 hr cycle = P. vivax/ovale
  • 72 hr cycle = P. malariae 

33

ring form, “Maltese cross”

Babesia

34

Babesiosis

  • fever
  • hemolytic anemia 
  • Northeastern US
  • increased risk: asplenia 

35

Chagas disease

Trypanosoma cruzi 

  • dilated cardiomyopathy
  • megacolon
  • megaesophagus 

36

Reduviid bug (“kissing bug”) feces

deposited in painless bite 

Trypanosoma cruzi 

37

Visceral Leishmaniasis 

Leishmania donovani 

  • spiking fevers
  • hepatosplenomegaly
  • pancytopenia 

38

MΦ containing amastigotes 

Leishmania donovani 

39

Vaginitis 

Trichomonas vaginalis 

  • foul-smelling
  • greenish discharge
  • itching & burning 

40

Trichomonas vaginalis transmission? why?

sexual transmission

can't form outside human b/c can't form cysts

41

"strawberry cervix"

Trichomonas vaginalis 

42

anal pruritis

Scotch Tape Test

Enterobius vermicularis (pinworm)

43

clinical disease of Strongyloides stercoralis 

  • vomiting 
  • diarrhea 
  • epigastric pain 

44

anemia – suck blood from intestinal walls 

Ancylostoma duodenale

Necator americanus

(hookworms)

45

hyperpigmented skin

river blindness 

Onchocerca volvulus 

46

swelling in skin

worm in conjunctiva 

Loa loa 

47

blocks lymphatic vessels

elephantiasis 

Wuchereria bancrofti 

48

visceral larva migrans 

Toxocara canis

49

cysticercosis, neurocysticercosis 

Taenia solium

50

vitamin B12 deficiency 

Diphyllobothrium latum

tapeworm competes for B12 in intestine --> anemia 

51

hydatid cysts in liver

Echinococcus granulosus 

52

liver & spleen granulomas, fibrosis, inflammation

Schistosoma 

53

chronic Schistosoma infection

SCC of the bladder

painless hematuria 

54

clinical disease of Clonorchis sinensis 

biliary tract inflammation --> pigmented gallstones

Cholangiocarcinoma 

55

  • painful bite
  • painless bite 

  • Trypanosoma bruceii
  • Trypanosoma cruzi