FREE LIVING AMEBAE Flashcards

1
Q

trophozoite stage can transform into a flagellate stage or a resistant cyst

A

Naegleria fowleri

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2
Q

opportunistic free living amoebae

A

Acanthamoeba spp.

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3
Q

examples of Acanthamoeba spp.

A

A. castellanii, A. culbertsoni, A. polyphaga, A. hatchetti, A. rhysodes

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4
Q

morphologically similar to acanthamoeba

A

Balamuthia mandrillaris

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5
Q

Balamuthia mandrillaris

cyst:
trophozoite:

A

cyst: trilayered mesocyst
trophozoite: finger-like pseudopods

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6
Q

rare cause of meningoencephalitis

A

Sappinia spp.

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7
Q

diseases caused by N. fowleri

A
  • Primary Amebic Meningoencephalitis (PAM)
  • Acute Encephalitis
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8
Q

N. fowleri diagnostic stages

A

Trophozoites (Ameboid & Flagellated)

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9
Q

diseases caused by Acanthamoeba spp.

A
  • Granulomatous Amoebic Meningoencephalitis (Chronic)
  • Amoebic Keratitis
  • Disseminated disease
  • skin lesions
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10
Q

Diagnostic stage of Acanthamoeba spp.

A

cysts and trophozoites

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