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Trematodes Flashcards

1
Q

Trematodes AKA

A

Flukes

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2
Q

Trematodes includes which organisms

A

Schistosoma
Paragonimus Westermani
Clonorchis sinesis
Opisthorchis
Fasciola hepatica
Fasciolapis buski

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3
Q

Infective form in case of Trematodes and exception

A

Metacercaria larva
Except Schistosoma - Cercaria larvae

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4
Q

Mode of infection in case of Trematodes and exception

A

Ingestion except Schistosoma - skin penetration

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5
Q

Eggs seen in case of Trematodes and exception

A

Operculated eggs

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6
Q

Eggs in Schistosoma species

A

Spinous egg
S. Mansoni - Lateral spine
S. Hematobium - Terminal spine
S. Japanicum - Rudimentary spine

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7
Q

Sex of Trematodes and exception

A

All hermophrodites except Schistosoma (separate sex)

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8
Q

Which Trematode doesn’t have secondary intermediate host

A

Schistosoma

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9
Q

Hosts in Schistosoma

A

Definitive host - Human
1st intermediate host - Snail
2nd intermediate host - Nil

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10
Q

Hosts in Paragonimus Westermani/Pulmonary fluke

A

Definitive host - Human
1st intermediate host - Snail
2nd intermediate host - Crab/Cray fish

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11
Q

Hosts in Clonorchis sinesis

A

Definitive host - Human
1st intermediate host - Snail
2nd intermediate host - Fish

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12
Q

Hosts of Opisthorchis

A

Definitive host - Human
1st intermediate host - Snail
2nd intermediate host - Fish

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13
Q

Hosts in Fasciola hepatica (Sheep liver fluke) and Fasciolopsis buski

A

Definitive host - Sheep/Man
1st intermediate host - Snail
2nd intermediate host - Fresh aquatic plants (water chestnut)

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14
Q

Schistosoma species includes

A

S. Mansoni
S. Hematobium
S. Japanicum

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15
Q

Schistosoma AKA

A

Blood fluke

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16
Q

Schistosoma shape

A

2 suckers
Separate sexes

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17
Q

Infective form of Schistosoma

A

Cercaria larva - forked tail
Enters by penetrating skin

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18
Q

Schistosoma hematobium resides in

A

Resides in vesical and pelvic Venous plexus

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19
Q

Schistosoma hematobium Causes

A

Causes hematuria
Squamous CC > Transitional CC ,(, Urinary bladder)

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20
Q

Schistosoma Mansoni resides in

A

Inferior Mesenteric vein draining Sigmoid rectal region

21
Q

Schistosoma Mansoni causes

A

Swimmer’s itch

22
Q

Schistosoma Japanicum resides in

A

Superior mesenteric vein draining ileocecal region

23
Q

Schistosoma Japanicum causes

A

Swimmer’s itch (more severe)
Genital Schistosomiasis
CNS Schistosomiasis

24
Q

Schistosoma causes

A

Acute Schistosomiasis
Chronic Schistosomiasis

25
Acute Schistosomiasis C/F
Katayama like fever - serum sickness like illness
26
Chronic Schistosomiasis causes
Granuloma Pipestem fibrosis (periportal)
27
Schistosoma Intercalatum features
West central africa Terminal spine Stools Acid fast
28
Diagnosis findings in Schistosomiasis
Urine/stool sample - Spiked eggs
29
Paragonimus Westermani AKA
Lung fluke
30
Endemic focus of Paragonimus Westermani in India
Manipur
31
Pulmonary symptoms in case of Paragonimus Westermani
Cough with sputum - Golden fleks (eggs of P. Westermani - operculated eggs)
32
Extrapulmonary symptoms in case of Paragonimus Westermani
Abdominal involvement
33
Infective form of Paragonimus Westermani
Metacercaria larva
34
Eggs in life cycle of Schistosoma
MCC Miracidia Cysts Cercaria
35
Eggs in life cycle of Paragonimus Westermani
MCRCM Miracidia Cysts Redia Cercaria Metacercaria
36
Liver flukes examples
Chlonorchis sinesis Opisthorchis viverini Opisthorchis felineus Fasciola hepatica Fasciola gigantica
37
Chlonorchis sinesis AKA
Chinese Liver fluke - looks like spatula (narrow and broad end(
38
Opisthorchis viverini AKA
Southeast asian liver fluke
39
Opisthorchis felineus AKA
Cat liver fluke
40
Fasciola hepatica AKA
Sheep liver fluke
41
Fasciola gigantica AKA
Giant liver fluke
42
Infective form,sex and eggs of Liver flukes
Infective form - Metacercaria Sex - Hermaphrodites Eggs - Operculated eggs - MRCM
43
Chlonorchis sinesis
Causes cholangitis - Cholangiocarcinoma
44
Fasciola hepatica Causes
Bile duct obstruction RUQ pain, Jaundice Halzoun - suffocation due to laryngeal edema
45
Intestinal Trematodes includes
Fasciolapsis buski (Giant intestinal fluke) Heterophyes (SI fluke) Metagonionus yokogawai Gastrodiscoides hominis (colonic fluke)
46
Which intestinal fluke resides in large intestine
Gastrodiscoides hominis (Colonic fluke)
47
Fasciolapsis buski clinical features
Abdominal pain Diarrhea Malabsorption
48
Hosts in case of intestinal Trematodes
Definitive host - Human 1st intermediate host - Snail 2nd intermediate host - Fresh aquatic vegetations
49
Treatment of Trematodes and exception
Praziquantel for all Except - Fasciola hepatica - Triclabendazole

Microbiology (37 decks)

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