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Clinical Parasitology > AMOEBAS MORPH > Flashcards

AMOEBAS MORPH Flashcards

1
Q

Entamoeba Histolytica troph

Ave size

A

12-25um

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2
Q

Entamoeba Histolytica cyst

Ave size

A

12-18um

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3
Q

Entamoeba Histolytica troph

movement

A

Unidirectional

Rapid and progressive

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4
Q

Entamoeba Histolytica

Number of nuclei

A

Troph: 1
Cyst: 4

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5
Q

Entamoeba Histolytica

Karyosome

A

Troph: small, central w/ peripheral chromatin
Cyst: small, central

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6
Q

Entamoeba Histolytica

Peripheral chromatin

A

both Fine and evenly distributed

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7
Q

Entamoeba Histolytica

cytoplasm

A

Ground glass appearance

Finely granular

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8
Q

Entamoeba Histolytica

cytoplasmic inclusions

A

Troph: ingested RBC
Cyst: Chromatoidal Bars

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9
Q

Where excystation happens

A

Ileum

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10
Q

Flask shaped ulcer

A

Cecum ascending colon

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11
Q

Virulence factors of Flask Shaped Ulcer

A

Gal-lectin
Amoeba pore
Cysteine Proteinases

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12
Q

Bacillary dysentery

A

Vomitting common

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13
Q

Amebic dysentery

A

No vomitting

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14
Q

Entamoeba Histolytica

Diagnosis

A

DFS: NSS and perma stain (PVA or mPVA)

Robinsons culture
Concentration technique-FECT + PCR DNA amplification
Serological

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15
Q

Entamoeba Histolytica

treatment

A

Metronidazole (Flagyl)

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16
Q

Entamoeba Histolytica

complications

A

Abemic Liver Abcess
Extraintestinal Amebiasis
Ameboma

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17
Q

Entamoeba Coli

Size

A

Troph: 18-27um
Cyst: 12-25um

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18
Q

Entamoeba Coli

Motility

A

Non progressive

Blunt pseudopods

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19
Q

Entamoeba Coli

Nuclei

A

Troph: 1
Cysts: 1-8

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20
Q

Entamoeba Coli

Karyosome

A

Both Large, irregular shape, eccentric

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21
Q

Entamoeba Coli

Peripheral chromatin

A

Both unevenly distributed

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22
Q

Entamoeba Coli

Cystoplasm

A

Both coarse and granulated

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23
Q

Entamoeba Coli

Cytoplasmic inclusions

A

Troph:
Vacuole w/ bacteria
Yeast cell
(Dirty looking amoeba)

Cyst:
Diffuse glycogen
Thin chromatoidal bars

24
Q

Entamoeba Hartmanni

Morphology

A

Similar to E. Histolytica

WITHOUT RBC

25
Q

Entamoeba Hartmanni

Size

A

Troph: 5-15
Cyst: 7-9

26
Q

Entamoeba Powlecki

Size

A

Troph: 8-25
Cyst: 10-20

27
Q

Entamoeba Powlecki

Motility

A

Troph: Sluggish, unidirectional progressive

28
Q

Entamoeba Powlecki

Nuclei

A

Both 1

29
Q

Entamoeba Powlecki

Peripheral chromatin

A

Sausage like

Fine and evenly distributed

30
Q

Entamoeba Powlecki

Cytoplasmic inclusions

A

Troph: Ingested bacteria and food particles

Cyst: chromatoidal bars

31
Q

Endolimax nana

Size

A

Smallest
Troph: 7-10um
Cyst: 4-12um

32
Q

Endolimax nana

Motility

A

Sluggish, non-progressive, blunt hyaline pseudopod

33
Q

Endolimax nana

Nuclei

A

Troph: 1
Cyst: 1-4

34
Q

Endolimax nana

Karyosome

A

Blot like

35
Q

Endolimax nana

Peripheral chromatin

A

ABSENT

36
Q

Endolimax nana

Cytoplasm

A

Granular and vacuolated

37
Q

Endolimax nana

Cytoplasmic inclusions

A

Bacteria

Comma shaped chromatoidal bars

38
Q

Iodamoeba butschlii

Size

A

Troph: 8-22um
Cyst: 8-12um

39
Q

Iodamoeba butschlii

Motility and shape

A

Sluggish progressive

Triangular

40
Q

Iodamoeba butschlii

Karyosome

A

Basket flowers shape in cysts

41
Q

Iodamoeba butschlii

Cytoplasmic inclusions

A

Well defined glycogen mass
Bacteria
Yeast cell

42
Q

Entamoeba gingivalis

Size

A

8-20

NO CYST

43
Q

Entamoeba gingivalis

Motility

A

Active motility

Varying pesudopod

44
Q

Entamoeba gingivalis

Nuclei

A

1

45
Q

Entamoeba gingivalis

Karyosome

A

Centrally located

46
Q

Entamoeba gingivalis

Cytiplasmic inclusions

A

Leukocytes
Ephithelial cells
Bacteria

47
Q

Entamoeba gingivalis

Habitat

A

Gum line or tonsilar crypts

48
Q

Entamoeba gingivalis

Transmitted by

A

Bronchial mucus

49
Q

Entamoeba gingivalis

Isolated by

A

Bronchial mucus
Pulmonary abcess
Sputum
Intea urethral device

50
Q

Naegleria fowleri

Size

A

Troph: 8-22
Cyst: 9-12
Flagellate: 7-15um

51
Q

Naegleria fowleri

Peripheral chromatin

A

ABSENT

52
Q

Naegleria fowleri

Specimen of choice

A

CSF, tissue and nasal discharge

53
Q

Naegleria fowleri

Treatment

A

Amphotericin B or

Micronazole

54
Q

Acanthamoeba

Size

A

Troph: 12-45um
Cyst: 8-25um

55
Q

Acanthamoeba

Specimen of choice

A

CSF, brain tissue, corneal scrapings

56
Q

Acanthamoeba

Stain

A

Calcoflour white

Clinical Parasitology (9 decks)

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