Entamoeba histolytica

Question 1

Morphological forms of Entamoeba histolytica ???

Answer 1

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

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Question 2

Encystation ???

Answer 2

Trophozoite form——- Cyst form

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Question 3

Excystation >???

Answer 3

Cyst —– Trophozoite

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Question 4

Why trophozoite form cannot cause infection ???

Answer 4

if it is ingested
it will be destroyed by gastric HCl

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Question 4

Primary or intestinal lesions by lesions ??

Answer 4

1. Acute amebic dysentry - Ulcer
2. Chronic intestinal amebiasis

Question 5

Diasease caused by E Histolytica ??

Answer 5

Amebiasis

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Question 6

Extra intestinal or metastatic lesions of amebiasis ??

Answer 6

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

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Question 7

Liver lesions of amebiasis ??

Answer 7

1. Amebic liver abscess

Question 8

Lungs lesions of amebiasis ??

Answer 8

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

Question 9

Brain lesions of amebiasis >???

Answer 9

Small abscess in one of the cerebral hemisphere

Question 10

Spleen & skin lesions of amebiasis ??

Answer 10

1. Spleen- Splenic abscess
2. Skin-Granulomatous ulceration