Cestodes And Trematodes Flashcards
What does adult worm consists?
Head
Neck
Trunk
What are the types of Cestodes?
Dişphyllobothrium Latum
Spirometra
Taenia Saginata
Taenia Solium
Eichnococcus Granulosus
How is the transmission of the Diphyllobothrium Latum?
Uncooked or undercooked fish containing third stage plerocercoid larva
What are the hosts of Diphylobothrium?
Definitive host: Man
1st Intermediate Host: Cyclops
2nd Intermediate Host: Fresh water fish
What is the longest tapeworm found in man ?
Diphylobothrium Latum
What does Diphylobothrium Latum causes?
Abdominal discomfort
Nausea
Megaloblastic anemia
How is the diagnosis of Diphylobothrium Latum?
Stool microscopy for egg and coproantigen test
What are the hosts of Spirometa?
Accedential: Man
Definitive: Cat,dog
How does the Spirometra transmitted?
Ingestion of infected cyclops
Ingestion of raw, infected fish
Local application of raw, infective flesh to skin Conjunctiva or vagina
What are the agents of Spirometra
S. Monsoni
S. Theileri
S. Erinacei
What is the disease of Spirometra?
Spargonosis
What are the hosts of Taenia Saginata?
D: Man
I: Cow
What are the hosts of Taenia Solium?
D: Man
I: Pig, Man
How does Taenia Saginata transmitted?
Undercooked beef containing cysticerous bovis.
How does Taenia Solium transmitted?
Undercooked pork containing cysticercus cellulose, autoinfection and egg in contaminated vegetable, food and water.
Which cestode is called as Beef Tapeworm?
Taenia Saginata
Which cestode is named as pork tapeworm
Taenia Solium
What does Taenia Saginata causes
Intestinal Taeniasis
What does Taenia Solium causes
Intestinal taeniasis and cysticercosis
How is the diagnosis of Taenia Saginata
Eggs Or proglottids in stool
Seroolignosis
Mol. Diagnosis
How is the diagnosis of Taenia Solium
Intestinal taenisis— egg or proglottids in stool
Cysticercosis
Biopsy
X-ray
CT scan
MRI
What are the hosts of Echinococcus Granulosus
D: Dog
I: Sheep
How is the transmission of Echinococcus Granulosus
Egg ingested by man with contaminated food and water.
Which stage of Echinococcus Granulosus is found in humans
Larval stage (hydatid cyst)
Where does adult form of Echinococcus Granulosus lives
Jejenum and Duodenum of dogs and other canine Carnivora
How is the diagnosis of Echinococcus Granulosus
Imaging
Examination of cyst fluid
Casani’s Test
Ab detection
Ag detection
What are the types of Trematodes
Schistosomes
Clanorchis Sinensis
Fasciola Hepatica
Fasciolopsis buski
What are the hosts of Schistosomes?
D: Man
I: fresh water snails
How is the transmission of Schistosomes
Free swimming cercria penetrate skin of man
What are the features of Schistosomes
Dioecious
Water borne disease
Skin: dermatitis ( summers itch)
GI: abdominal pain, ascites, diarrhea
Urogenital: chronic cystitis and urethritis
How is the diagnosis of Schistosomes
Detection of eggs in urine or stool
Biopsy
Imaging and detection of ag,ab
What are the hosts of Clanorchis Sinensis
1st Intermediate hoıst: Snail
2nd Intermediate host: Fish
D: Man
How is the transmission of Clanorchis Sinensis
Ingestion of infected fish
What are the features of Clanorchis Sinensis
Most infections have a light burden
Infects the common bile duct and gall bladder, feeding on bile
Manifestations include mild abdominal symptoms
Longer duration: Hepatomegaly, Malnutrition
What are the hosts of Fasciola Hepatica
D: Sheep (1st), Man
I: Snail
How is the transmission of the Fasciola Hepatica
Consuming aquatic plants encysted with metacerceriae
What are the features of the Fasciola hepatica
Acute phase: fever, right upper quadrant pain, Hepatomegaly
Chronic: biliary abstraction, abstructrive jaundice, cholelithiasis and anemia
How is the diagnosis of Fasciola Hepatica
Detection of eggs in stool and aspirated b,le
USG
ERCP
ELISA
What are the hosts of Fasciolopsis Buski
D: Man
1st I: Snail
2nd I: Water plants
How is the transmission of the Fasciolopsis Buski
Consuming aquatic plants with encysted metacarcariae
What are the features of the Fasciolopsis Buski
Larvae that attach to duodenal, jejunal mucosa cause inflammation and local ulceration
Heavy infections: malabsorption, protein-losing enteropathy, impaired vir. B12 absorption
Diarrhea, abdominal pain