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Microbiology -Medical-Prof > Entamoeba histolytica > Flashcards

Entamoeba histolytica Flashcards

1
Q

Morphological forms of Entamoeba histolytica ???

A
  1. Trophozoite stage
  2. Pre-cystic stage
  3. Cyst stage

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2
Q

Encystation ???

A

Trophozoite form——- Cyst form

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3
Q

Excystation >???

A

Cyst —– Trophozoite

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4
Q

Why trophozoite form cannot cause infection ???

A

if it is ingested
it will be destroyed by gastric HCl

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4
Q

Primary or intestinal lesions by lesions ??

A
  1. Acute amebic dysentry - Ulcer
  2. Chronic intestinal amebiasis
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5
Q

Diasease caused by E Histolytica ??

A

Amebiasis

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6
Q

Extra intestinal or metastatic lesions of amebiasis ??

A
  1. Liver
  2. Lungs
  3. Brain
  4. Spleen
  5. Skin
  6. Urogenital tract

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7
Q

Liver lesions of amebiasis ??

A
  1. Amebic liver abscess
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8
Q

Lungs lesions of amebiasis ??

A
  1. Small multiple abscesses
  2. Single abscess - lower lobe of right L
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9
Q

Brain lesions of amebiasis >???

A

Small abscess in one of the cerebral hemisphere

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10
Q

Spleen & skin lesions of amebiasis ??

A
  1. Spleen- Splenic abscess
  2. Skin-Granulomatous ulceration
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11
Q

bacillary dysentry ?

A

shigella

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12
Q

amebic dysentry?

A

E h

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13
Q

Protozoal Dysentry ?

A

giardia
balantidium

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14
Q

helminthic dysentry >

A

round Al
& thread worm EV

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15
Q

dysentry def <

A

acute inflammation of Large intestine by D + BLOOD + mucus in stool

16
Q

infective form ?

A

mature quadrinucleate cyst

17
Q

dysentry bangla ?

18
Q

transmission of E h <

A

fecal oral

19
Q

amebic ucler margin ?

A

ragged
undermined

20
Q

amebic ucler location ?

A

cecum
a colon
ileocecal valve
appendix
sigmoidorecrtal region

21
Q

amebic ucler base <

A

muscular coat

22
Q

dysentry which layer <

A

sub-mucosa

23
Q

pathogenic stage of E h <

A

Trophozoite

24
Q

diagnostic stage of E h «

25
Q

ameboma ,

A

in CIA ulceration + regenerative tissue damage in large guts — formation of tumor like masses of granulation tissue - amebic granuloma m/ ameboma

25
Q

E h VS E coli ,

26
Q

CBC of amebic L d

A

leukocytosis

26
Q

pathogenesis of Amebic liiver disease in on e line

A

ichemic necrosis of liver cells

27
Q

pus of amebic liver disease <

A

chocolate colour
anchovy-sauce pus

28
Q

amebic vs bacillary dysentry ,

29
Q

amebiC Dysentry contents <

A

number of motion - 6-8
odor - offensive
colour - dark red
RBC - clumped reddish yellow
pus cell s- sacnty
ghost cell nai
charcot leyden crystal yes
reaction- ACIDIC
pyknotic bodies ccommon

30
Q

amebic liver D stool finding?

Microbiology -Medical-Prof (49 decks)

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