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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
Entamoeba Hartmanni | Size
Troph: 5-15 Cyst: 7-9
26
Entamoeba Powlecki | Size
Troph: 8-25 Cyst: 10-20
27
Entamoeba Powlecki | Motility
Troph: Sluggish, unidirectional progressive
28
Entamoeba Powlecki | Nuclei
Both 1
29
Entamoeba Powlecki | Peripheral chromatin
Sausage like | Fine and evenly distributed
30
Entamoeba Powlecki | Cytoplasmic inclusions
Troph: Ingested bacteria and food particles Cyst: chromatoidal bars
31
Endolimax nana | Size
Smallest Troph: 7-10um Cyst: 4-12um
32
Endolimax nana | Motility
Sluggish, non-progressive, blunt hyaline pseudopod
33
Endolimax nana | Nuclei
Troph: 1 Cyst: 1-4
34
Endolimax nana | Karyosome
Blot like
35
Endolimax nana | Peripheral chromatin
ABSENT
36
Endolimax nana | Cytoplasm
Granular and vacuolated
37
Endolimax nana | Cytoplasmic inclusions
Bacteria | Comma shaped chromatoidal bars
38
Iodamoeba butschlii | Size
Troph: 8-22um Cyst: 8-12um
39
Iodamoeba butschlii | Motility and shape
Sluggish progressive | Triangular
40
Iodamoeba butschlii | Karyosome
Basket flowers shape in cysts
41
Iodamoeba butschlii | Cytoplasmic inclusions
Well defined glycogen mass Bacteria Yeast cell
42
Entamoeba gingivalis | Size
8-20 | NO CYST
43
Entamoeba gingivalis | Motility
Active motility | Varying pesudopod
44
Entamoeba gingivalis | Nuclei
1
45
Entamoeba gingivalis | Karyosome
Centrally located
46
Entamoeba gingivalis | Cytiplasmic inclusions
Leukocytes Ephithelial cells Bacteria
47
Entamoeba gingivalis | Habitat
Gum line or tonsilar crypts
48
Entamoeba gingivalis | Transmitted by
Bronchial mucus
49
Entamoeba gingivalis | Isolated by
Bronchial mucus Pulmonary abcess Sputum Intea urethral device
50
Naegleria fowleri | Size
Troph: 8-22 Cyst: 9-12 Flagellate: 7-15um
51
Naegleria fowleri | Peripheral chromatin
ABSENT
52
Naegleria fowleri | Specimen of choice
CSF, tissue and nasal discharge
53
Naegleria fowleri | Treatment
Amphotericin B or | Micronazole
54
Acanthamoeba | Size
Troph: 12-45um Cyst: 8-25um
55
Acanthamoeba | Specimen of choice
CSF, brain tissue, corneal scrapings
56
Acanthamoeba | Stain
Calcoflour white

Clinical Parasitology (9 decks)

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