Intestinal Nematodes - ENTEROBIUS VERMICULARIS

Question 1

Pinworm/Seatworm/Enterobiasis/Oxyuriasis/Cosmopolitan worm

soil transmitted helminth

life cycle CONFINED TO HUMANS

MC in DEVELOPED COUNTRIES - COSMOPOLITAN WORM

Answer 1

Enterobius vermicularis

*LARGE intestine

• ingestion of embryonated eggs
• inhalation of eggs

Question 2

Diagnostic test for pinworm

Answer 2

GRAHAM SCOTH/CELLULOSE TAPE TEST
*D shaped ovum w/ thin colorless cell wall

• EGGS ON PERIANAL FOLDS

Question 3

Pathogenesis of Pinworm

Answer 3

female releases thousands of fertilized eggs on perianal skin

eggs developed into larvae – ANAL PRURITUS

AUTOINFECTION can occur

Question 4

Spectrum of Disease (Pinworm)

Answer 4

PRURITUS ANI
eosinophilic entercolitis
vulvovaginatis
salpingitis
APPENDICITIS (oxyuriasis)

Question 5

Treatment for Pinworn

Answer 5

Pyrantel Pamoate