tutorial revision of tissue nematodes

8/3/2019 Tutorial Revision of Tissue Nematodes

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Revision


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Cyclops is the intermediate host for Dracunculus medinensis

Elephantiasis is caused mainly by adult worms.

Xenodiagnosis is used for diagnosis of Trichinella spiralis..

Dogs are important hosts for visceral larva migrans

Indicate true statements with ( T ) & false ones with ( F ):

Onchocerca volvulus causes calabar swelling

Trichinella spiralis is caused by piercing of the skin by filariform larva


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the infective stage of nematodes transmitted by undercooked meat

Illustrate with diagrams

In a table form compare between the following

the habitat & vectors of six helminthes biologically transmitted to man by arthropods

The cause of itching in enterobiasis and cutaneous larva migrans

Onchocerca nodule and calabar swelling

Diagnostic stage ofW. bancrofti.

Diagnostic stage of Brugia malayia.

The infective stages ofTrichinella spiralis

Microfilariae of Wucheraria bancrofti and Loa loa.


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Visceral larva migrans is manifested by:

a- Hepatomegaly. b- High Eosinophilia.

c- Hypergammaglobulinaemia. d- All of the above.

Choose the correct answer(s)

Eating undercooked meat can transmit:

(a) Trichinella spiralis (b) Dracanculus medinensis

(c) Capillaria philippinensis (d)Ascaris lumbricoides

Parasites transmitted by blood transfusion:

Wuchereria bancrofti.

Visceral larva migrans.

Schistosoma haematobium

None of the above

Occult Filariasis can be diagnosed by:

Decrease of immunoglobins (especiallyIgE)

Detection of circulating filarial antigen in the blood.

Detection of microfilariae in thin blood film.

None of the above


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Eye affection is manifested in following parasitic infections, except:

a- Enterobius vermicularis b- Onchocerca volvulus

c- Toxocara cati & canis

Lizard skin may be the result of infection with:

a- Onchocerca vovulus. b- Loa loa.

c- Mansonella ozzordi. d- Burgia malayi.

Xenodiagnosis is used for diagnosis of the following:a. Trichinosis. b. Sleeping sickness.

c. Fascioliasis. d. Giardiasis

Man is a blind host in infection with:

a- Toxoplasma gondii. b- Diphyllobothrium latum.

c- Trichinella spiralis. d- Hydatid cyst.


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Clinical aspects of bancroftian filariasis.

Write short notes on:

Visceral larva migrans.

A female patient living in Sharkia Governorate complained of repeated attack of fever,

rigors, hotness and swelling of one lower limb. Clinical examination revealed non

pitting edema of the lower limb and enlarged inguinal lymph node.

What is the most suggested parasitic infection in this patient?

How can you confirm the diagnosis?

How would you treat this patient?

Enumerate other parasites causing lymphadenopathy?

Case (1)

Onchocerca tumour

Pathogenesis of elephantiasis in Wuchereria bancroftiinfection

Diagnosis of acute trichinosis

Causes &diagnosis of visceral larva migrans.


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Blindness in onchocerciasis

Give the reason(s) for

Well water should be boiled or filtered before drinking

Occurrence of lymphatic obstruction in case of chronicMalayan filariasis


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Consumption of pork may lead to infection with

Complete:

Microfilaria of...&.has nocturnalmicrofilaria of ..has diurnal periodicity.

periodicity while

Cyclops are the intermediate host for.

Pigs play an important role in transmission of..


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Cause corneal opacity

Name parasites Which:Name parasites Which:

Cause skin ulcer

Can cause ocular lesions..

Can be diagnosed by blood film

The advantages of the following: DEC provocation test in diagnosis of lymphatic filariasis

tutorial revision of tissue nematodes

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