Trematodes (Pragonimus westermani)

Question 1

Common name of Paragonimus westermani

Answer 1

Oriental lung fluke

Question 2

Habitat of Paragonimus westermani

Answer 2

Capsule of the lungs

Question 3

1st intermediate host of Paragonimus westermani

Answer 3

Snails including Antemelania dactylus, Antemelania asperatia (formerly Brotia asperata)

Question 4

2nd intermediate host of Paragonimus westermani

Answer 4

Freshwater crab (Sundathelphusa philippina) “mountain crab/talangka”

Question 5

Final host of Paragonimus westermani

Answer 5

Man, Dogs, Cats, Field rats

Question 6

Size and shape of an adult Paragonimus westermani

Answer 6

same size and shape with watermelon seeds or coffee beans

Question 7

Color of adult Paragonimus westermani

Answer 7

Reddish brown

Question 8

OS ___ VS of Paragonimus westermani

Answer 8

=

Question 9

Testes of Paragonimus westermani

Answer 9

Deeply lobed, tandem

Question 10

Ovary of Paragonimus westermani

Answer 10

Lobed at the side

Question 11

Uterus of Paragonimus westermani

Answer 11

Coiled

Question 12

Intestinal ceca of Paragonimus westermani

Answer 12

Succular or Wavy

Question 13

Tegument of Paragonimus westermani

Answer 13

Single spaced, scale like spines

Question 14

Eggs of Paragonimus westermani

Answer 14

Wide flat operculum with abopercular end (thick posterior portion)

Question 15

Cercaria of Paragonimus westermani

Answer 15

Has stylet that penetrates crab joints

Question 16

Diseases caused by Paragonimus westermani

Answer 16

Pulmonary distomiasis, Endemic hemomptysis (coughing out of blood) TB like syndromes

Question 17

Reason for bloody sputum

Answer 17

Granulomatous rxn leading to fibrotic encapsulation