Order Digenea: Genus Fascioloides

Question 1

Common name of Fascioloides

Answer 1

Large American liver fluke

Question 2

Fascioloides “large american liver fluke”

Answer 2

• Large (2-10 cm), oval, thick flesh-colored fluke
• No distinct anterior cone

Question 3

Final Host of Fascioloides magna

Answer 3

white-tailed deer

Question 4

Intermediate Host of Fascioloides magna

Answer 4

Lymnaea sp.
Fossaria sp.
Siagnocola sp.

Question 5

Predilection site of Fascioloides magna

Answer 5

Liver tissue and/or bile duct

Question 6

Life Cycle of Fasciola spp.

Answer 6

Ruminant Host- EGG- egg containing MIRACIDIUM- miracidium penetrating small- SPOROCYST- REDIA- CERCARIA- METACERCARIA

Question 7

Forms of the Disease

Answer 7

Acute and Chronic

Question 8

ACUTE forms of the Disease

Answer 8

• less common
• liver necrosis and hemorrhage
• associated with BLACK DISEASE which is caused by CLOSTRIDIUM NOYVI

Question 9

Chronic form of disease

Answer 9

• most common
• hepatic fibrosis and hyperplastic cholangitis
• pipe stem liver
• hazel nut sized cysts
• bottle jaw

Question 10

Diagnosis of Fasciola spp.

Answer 10

• fecal exam
• skin test
• ELISA

Question 11

drug of choice for fasciola spp.

Answer 11

Triclabendazole

Question 12

-large, (2-10 cm), oval, thick flesh-colored fluke

Answer 12

Fascioloides “large american liver fluke”

Question 13

no distinct anterior cone

Answer 13

Fascioloides “large american liver fluke”

Question 14

Final host is white tailed deer are the normal definitive host although other ruminants may be affected

Answer 14

Fascioloides magna

Question 15

Distribution of Fascioloides magna

Answer 15

North and Central America: Europe

Question 16

Vet. significance of Fascioloides magma

Answer 16

low in sheep; may be high in cattle

Question 17

Life cycle similar with Fasciola

Answer 17

Fasciolopsis

Question 18

9-13 wks prepatent period

Answer 18

Fasciolopsis

Question 19

Large (3-7 cm)

Answer 19

Fasciolopsis

Question 20

infection acquired by ingestion of encysted MC in tubers of water plants like water chestnut which are eaten raw by animals

Answer 20

Fasciolopsis

Question 21

scientific name of water chestnut

Answer 21

Eliocharis tuberosa

Question 22

final host are man and pigs

Answer 22

fasciolopsis buski

Question 23

Intermediate host of Fasciolopsis buski

Answer 23

Planorbis sp., Segmentina sp.

Question 24

predilection site of Fasciolopsis buski

Answer 24

small intestine

Question 25

Distribution of Fasciolopsis buski

Answer 25

South and Southeast Asia

Question 26

Pathology of Fasciolopsis buski

Answer 26

Diarrhea, intestinal ulceration, emaciation, emaciation and anemia in humans

Question 27

less pathogenic in dog and pig

Answer 27

Fasciolopsis buski

Question 28

oral sucker, ventral sucker (terminal end, maggot appearance)

Answer 28

Paramphistomoidea (amphistomes)

Question 29

common name of paramphistomoidea (amphistomes)

Answer 29

conical flukes or stomach flukes

Question 30

pear-shaped, red or pink in color.

Answer 30

paramphistomes

Question 31

Paramphistomoidea (Amphistomes)

Answer 31

° also known as PARAMPHISTOMES, CONICAL FLUKES, or STOMACH FLUKES
° PEAR-SHAPED, RED or PINK in color
° Suckers are situated at each extremity
° PHARYNX are ABSENT
° with SIMPLE CECA

Question 32

with ventral pouch, body not divided into 2 parts

Answer 32

Gastrothylacidae

Question 33

without ventral pouch, body not divided into 2 parts

Answer 33

Paramphistomidae

Question 34

without ventral pouch, body divide into 2 parts

Answer 34

gastrodiscidae

Question 35

Genera of Family Gastrothylacidae

Answer 35

• Fischoederius
• Carmyerius
• Gastrothylax
• Velasquezotroma

Question 36

Fischoederius in rumen of cattle and carabao

Answer 36

F. elongatus
F. cobboldi

Question 37

Carmyerius in rumen

Answer 37

C. synethes
C.gregarius

Question 38

Gastrothylax in rumen

Answer 38

G. crumenifer

Question 39

Velasquezotroma in rumen of buffaloes

Answer 39

V. brevisacus

Question 40

Genera of Family Paramphistomidae

Answer 40

• Paramphistomum
• Calicophoron
• Gigantocotyle
• Cotylophoron
• Ceylonocotyle/Orthocoelium

Question 41

Paramphistomum in rumen and reticulum

Answer 41

P. cervi

Question 42

Calicophoron in rumen

Answer 42

C. calicophorum
C. crassium

Question 43

Gigantocotyle in liver of cattle and carabao

Answer 43

G. batycotyle

Question 44

Gigantocotyle in bile duct, gallbladder, and duodenum of cattle and buffalo

Answer 44

G. explanatum

Question 45

Cotylophoron in rumen and reticulum

Answer 45

C. cotylophorum

Question 46

Genera of Family Gastrodiscidae

Answer 46

• Gastrodiscus
• Homologaster

Question 47

Genera of Family Gastrodiscidae

Answer 47

• Gastrodiscus
• Homologaster

Question 48

Host of Gastrodiscidae

Answer 48

mainly found in ruminants but may also be present in pigs and horses

Question 49

Intermediate Host of Gastrodiscidae

Answer 49

Planorbis sp., Bulinus sp., Galba sp., Lymnaea sp.

Question 50

Site of Gastrodiscidae

Answer 50

rumen and reticulum

Question 51

Life Cycle of Gastrodiscidae

Answer 51

generally similar patterned with FASCIOLA, but the prepatent period is only 7-10 weeks and the entire life cycles takes 14-16 weeks

Question 52

Treatment of Gastrodiscidae

Answer 52

Albendazole