Parastic larva Flashcards
(32 cards)
بسم الله الرحمن الرحيم
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“ ولقد بعثنا في كل أمة رسولا أن أعبدوا الله واجتنبوا الطاغوت فمنهم من هدي الله ومنهم من حق عليه الضلالة”
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in spargnosis human is ,,,host?
Accidental intermdiate blind
Spirometra mansoni found in ?
Dogs intestine its larava called sparganum which is found in human frogs birds snakes
Defintive host of Spiromertia masnoni ?
Dogs cats
and their habitat is the small intestine
Mention intermediate host of spirometira mansoni ?
2 inermediates
First: Cyclops conatinig procercoid
Second : Frogs snakes and birds conatinig sparganum the larva
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human acciednetal blind end host containing ?:-
the Spatganmum
Mention the infective stage of spargnosis ?
Procercoids in cyclops
Sparganum in frongs snakes birds
Mode of transmission of the spargnosis describe
CF2
1-Drinking water containing cyclops thas have procercoid
2-Eating undercooker frogs and snakes that have Spargnum
3-applying frog skin as foment on inflammed skin or eye the Sparganum will migartes from cold to Hot inflammed tissue
Pathogensis of Sparganosis ?
Sparagnum induces Chronic inflammatory reaction ending with swelling at site of infection
the clinical picture depends on Site and Number of larva most common sites are
subcunateous tissue
Eye - lymphnodes -CNS
Skin and subcutanous swelling in Spargnosis
Due to the inection and inflammation and the larva
froming abscess from which the larva can go out
Eye is affected is spargnosis causing?
Conjuncticivis + periorbital odema
Patient may suffer from
Urticaria odema Eosionphilia
Pain + fever
Cerebral spargnosis manifestation mention
Seizures -1
Confusion Memory loss -2
Fatigue - Motor weakness - hemiparesis -3
Fever - headache -4
infectoin involves cereberal hemishperes may extends to cerebellum
Diagnosis of spargnosis descibe
Clinical history:
Drinking infected water with cyclops
Eating undercooked frogs with sparegaum
Applying foments of frog skin
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Definitive diagnosis = confiramtory diagnosis
Biopsy of swelling containing the larva
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CT + MRI for localization the site of infection
Treatment and precnetion of spargnosis
Surgical removal of the sparganum larva
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prevention :
Boiling water to kill cyclops
Cooking well frogs to kill spargnum
Apllying Clean skin of frogs as foments
Mention cestode larva found in brain?
Sparaganum
Cysticercus
Hydatid
In cysticercois human is …..host?
Accidential intermideate end blind host
The larva of tenia solium which is called cysticeuc cellulosae is the reason for
Cysticercosis
Definitive host of tenia solium ?
Human small intestine
Intermediate host of Tenia solium ?
Is Pigs and humans containing the larca cysticercus cellulosae
Infective stage of cysticecosis ?
Eggs of tenia solium
Mode of transmission of Cysticerosis ?
1-Heteroinfection from One person to another as the chef with tenia solium without washin hands after defecation putting his hands in the food seved !
2-Autoinfection :
External autoinfection : the sam chef eats the food containing the tenia solium eggs he has put in food due to not washing his hands after defecation
Intarnal autoinfection due to peristalisis causing The eggs to ascned to stomach acidity casuing it to hatch Cystcercu cellulosae
Describe cysticercus cellulosae
A bladder invaginated with inverted scolex 5-10 mm reaching 60 mm in brain
most affected sites :
Brain -Skeletal muscles - Subcutanuous tissue - Eyes and lungs
Describe clincal picture of cysticercosis ?
Occular cysticercosis :
cuasing Conjunctival swelling
affecting Iris - choroids - Retina
Viusal disturbances
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Musclar cysticercosis :
Causing nodules asymptomatic
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Neurocystice cysticercosis :
Seizures
Headache fever
Vomiting
vertigo
Personaltiy and mental changes
How to diagnose cysticerocisis >?
History clinical :
someone in endemic area with nervous manifertations +Nodules
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1-Stool examination
2-CSF when the infection reaches the ventricles causing what? Eosinphilia high protein and normal glucose
3-ELISA + IMMUNO BLOT
4-SURGICAL BIOPSY
5-x RAY MRI OF The Skull
Treatment of Cysticercosis is ?>
PAASS!!!
Praziqunatel
Albendazole
Anti epliptic
Steroids
Surgical Treatment
Prevnetion of cysticercosis how ?
1-Personal hygience
2-environmental sanitation
3-Protect food against tenia solium eggs
4-Early detecton + Early treatment of persons with tenia solium !
