Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

3S - Trematodes > Liver Flukes: Fasciola hepatica > Flashcards

Liver Flukes: Fasciola hepatica Flashcards

(54 cards)

Start Studying
1
Q

Common name of Fasciola hepatica

A
  • Sheep liver fluke
  • Temperate liver fluke
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Disease produced by Fasciola hepatica

A
  • Fascioliasis (Sheep)
  • Sheep liver rot (Temperate)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

MOT of Fasciola hepatica

A
  • Ingestion of Metacercaria encysted on raw edible aquatic plants
  • Drinking water with metacercaria
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Diagnostic stage of Fasciola hepatica

A
  • Operculated
  • Unembryonated egg
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

1st Intermediate host of Fasciola hepatica

A

Snail: Family of Lymnaeidae

● L. truncatula
● L. bulmoides
● L. tomentosa
● L. rubiginosa
● L. philippinensis
● L. auricularia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

2nd Intermediate host of Fasciola hepatica

A

Aquatic Plants
- Ipomea obscura (Kangkong)
- Nasturtium officinale (Watercress)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Scientific name for Kangkong

A

Ipomea obscura

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Scientific name for Watercress

A

Nasturtium officinale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Definitive/Final Host of Fasciola hepatica

A

Human

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Clinical Manifestation of Fasciola Hepatica, there are 6.

A
  1. Hepatic Fascioliasis
  2. Inflammation in biliary epithelium
  3. Liver atrophy
  4. Liver cirrhosis
  5. Liver cancer
  6. Halzoun/Pharyngeal Fascioliasis
    • Ectopic Fascioliasis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What Clinical manifestation of asciola hepatica is this?

Asymptomatic fever, RUQ Abdominal Pains, Inc. PBS for Eosinophil, Hepatomegaly

a. Hepatic fascioliasis
b. Ectopic Facioliasis
c. Halzoun (Pharyngeal fascioliasis)

A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What Clinical manifestation of asciola hepatica is this?

Parasite wanders hematogenously; causes necrosis, abscess, fibrosis (lungs/brain/orbit)

a. Hepatic fascioliasis
b. Ectopic Facioliasis..
c. Halzoun (Pharyngeal fascioliasis)

A

B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What Clinical manifestation of Fasciola hepatica is this?

Ingesting raw sheep’s liver leading to edema and congestion

a. Hepatic fascioliasis
b. Ectopic Facioliasis
c. Halzoun (Pharyngeal fascioliasis)

A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What Clinical manifestation of Fasciola hepatica is this?

Subcutaneous nodules

a. Skin involvement
b. Biliary obstruction
c. Triad

A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What Clinical manifestation of fasciola hepatica is this?

Cholecystitis, cholangitis, cholelithiasis

a. Skin involvement
b. Biliary obstruction
c. Triad

A

B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What Clinical manifestation of fasciola hepatica is this?

Sudden onset of high fever, hepatomegaly, marked eosinophilia

a. Skin involvement
b. Biliary obstruction
c. Triad

A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Diagnosis of Fasciola hepatica

A
  1. DFS/Stool exam: detection of coproantigens (immunologic method: ELISA, Western blot)
  2. Duodenal Aspiration
  3. Serologic test
  4. NAT (Nucleic Acid Test -> PCR)
  5. FECT
  6. Kato-Katz
  7. Recovery of adult worms during surgery
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Treatment for Fasciola hepatica

A

Triclabendazole
Bithionol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Stain used to be injected in liver flukes to see internal organs

A

Potassium permanganate or India Ink

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Habitat of Fasciola hepatica

A
  • Biliary passages of the liver
  • Bile duct
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Infectiv stage of Fasciola hepatica

A

Metacercaria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Pathology of F. hepatica

Study These Flashcards
A

● Hepatic Fascioliasis
● Inflammation in biliary epithelium
● Liver atrophy
● Liver cirrhosis
● Liver cancer
● Halzoun/Pharyngeal Fascioliasis

23
Q

What is the causative agent of Halzoun (Pharyngeal Fascioliasis)?

Egg or adult worm of Fasciola hepatica?

Study These Flashcards
A

Adult worm of Fasciola heptica

24
Q

When Fasciola hepatica is layed, is it immature or mature?

25
What is the Faciola hepatica egg called?
Hen’s egg
26
Life Cycle of Fasciola hepatica (own words)
1. Metacercaria 2. Adult will produce egg (environment) 3. Embryonation 4. Creation of 1st stage larva (miracidium) 5. Sporocyst 6. Rediae 7. Metacercaria
27
F. hepatica 1st IH in Europe and North Asia
Lymnaea truncatula
28
1st Intermediate host of Fasciola hepatica in North America
*Lymnaea bulmoides*
29
1st Intermediate host of Fasciola hepatica in Australia
*Lymnaea tomentosa*
30
1st Intermediate hosts of Fasciola hepatica
- *L. truncutula* (Europe & North Asia) - *L. bulmoides* (North America) - *L. tomentosa* (Australia) - *L. rubiginosa* - *L. philippinensis* - *L. auricularia*
31
1st IH: ______ 2nd IH: ________ of Fasciola hepatica
1st IH: Snail 2nd IH: Aquatic Plants
32
The testes of F. hepatica is in what form? a. branched b. unbranced
a. branched
33
The uterus of F. hepatica is in what form?
Coiled
34
The intestinal ceca of F. hepatica is in what form? a. branched b. unbranced
a. branched
35
When the egg of f. hepatica is layed, is it embryonated or unembryonated? + What is its appearance in terms of size and color?
Unembryonated, Large, Yellow to Brown
36
What is the appearance of the cephalic cone of F. hepatica? wide or thin
**Wide** cephalic cone
37
MOT of F. hepatica/gigantica
Ingestion of undercooked or raw aquatic plants containing metacercaria
38
Adult Morphology of F. Hepatica
● Leaf-like appearance ● Rounded in shape ● Shorter, smaller, flat, broad body ● Has smaller cephalic cone ● Flesh or pinkish color
39
F. hepatica - Has cephalic cone - Prominent shoulders
- Cephalic cone: triangular/pyramidal structure
40
F. hepatica - Ovary is dendritic n/a
41
F. hepatica eggs when released is _____ (mature/immature)
Immature when released
42
Fasciola eggs are quite difficult to distinguish, there is no clear distinction between F. hepatica and F. gigantica. Hence, the matter of reporting would be ________?
Fasciola egg
43
Fasciola eggs are also quite similar to Fasciolopsis eggs, hence, in other references they are reported as _______?
Fasciola/Fasciolopsis eggs.
44
F. hepatica: Shape of cephalic cone
- triangular/pyramidal structure
45
F.hepatica/gigantica: Life Cycle
1. Ingestion of Kangkong/Water plants (with ***METACERCARIA***) 2. Meta would ***exist*** ***in*** ***duodenum***, will burrow until it reaches the ***liver*** and will mature to become adult. 3. Eggs released sa feces (unembryo) 4. After 9-15 days, it will embryonate and hatch the ***MIRACIDIUM*** 5. Miracidium will penetrate the snail, ***develop*** from ***SPOROCYST***, ***REDIAE***, to ***CERCARIAE*** in the **snail** **tissue**. 6. ***CERCARIAE*** will eventually infect the 2nd IH, repeating the life cycle
46
F. hepatica/F. gigantica: Disease Manifestations
Fascioliasis
47
F. hepatica/F. gigantica: Disease Manifestations - **Fascioliasis** Its Clinical stages: Acute Stage
Acute Stage: **Larval** **migration** and **Worm** **maturation** - **Fever** - **Jaundice:** yellowing of the skin and sclera of the eyes ○ This happens because the parasite might cause obstruction in the bile duct, where the pigment bilirubin passes through. - **Pain** - **Anorexia** - **Hepatomegaly:** enlargement of the liver - Triad of Manifestations: High fever, hepatomegaly, and marked eosinophilia are of diagnostic significance - Occurrence of Liver rot: severe or significant destruction of the liver due to the migrating larva
48
F. hepatica/F. gigantica: Disease Manifestations - **Fascioliasis** Its Clinical stages: Chronic Stage
Chronic Stage: Persistence of the adults in the biliary ducts - Obstruction and inflammation leading to fibrosis (scarring of the liver)
49
Determine what F. hepatica/F. gigantica: Disease Manifestations temporary lodgement of the fluke in the pharynx - Happens when person ingest raw liver of sheep, cattles, or beef that is infected with the parasite - Delicacies in Mediterranean countries - Once ingested, it could cause suffocation and respiratory problems a. Fascioliasis b. Halzoun/Marrara c. Spurious Infections
B. Halzoun/Marrara
50
Determine what F. hepatica/F. gigantica: Disease Manifestations a.k.a. Pseudofascioliasis (False infection) - not real infections - usually happens to patients who ingests cooked liver - cooked liver might still contain parasite eggs - Stool specimen might indicate Fasciola infection but in reality, it is a false infection - Avoid eating liver 3 days before the scheduled stool examination to avoid a diagnosis of false infection. a. Fascioliasis b. Halzoun/Marrara c. Spurious Infections
c. Spurious Infections
51
What do you call the Infection where cooked liver might still contain parasite eggs?
Pseudofascioliasis (False Infection)
52
T/F: Fasciola spp. is difficult to distuish from F. buski
True
53
Fasciola spp. Reservoir hosts
1. Hares 2. Rabbits
54
What country has the increased numer of cases in Fasciola spp.?
Vietnam

3S - Trematodes (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions