Ectoparasites — Flashcards

Flashcard 1: Which parasite class has suckers and hooks?_____

Answer: Cestodes

Flashcard 2: The vector for scrub typhus is _____

Answer: trombiculid mite

Flashcard 3: Which organism is the causative agent of **scabies**, typically presenting with nocturnal pruritus and cutaneous burrows?

Answer: Sarcoptes scabiei

Extra: Sarcoptes scabiei is an ectoparasite (mite) that burrows into the stratum corneum of the skin. - **Clinical features:** Nocturnal pruritus, burrows (pathognomonic) in finger webs, wrists, and genitalia. - **Treatment:** Permethrin 5% cream (Drug of Choice) or oral Ivermectin.

Flashcard 4: Cutaneous larva migrans is most commonly caused by _____

Answer: Ancylostoma braziliense

Flashcard 5: The following organism is _____

Answer: head louse/Pediculus humanus var. capitis

Flashcard 6: Larva currens (meaning racing larvae ) is the rapidly progressing serpiginous urticarial tracks caused by migrating filariform larvae of _____

Answer: Strongyloides

Flashcard 7: Following is an egg of: _____

Answer: Enterobius vermicularis

Flashcard 8: The following organism is _____

Answer: crab louse/Pthirus pubis

Flashcard 9: Which form of Plasmodium spp. is seen here? _____

Answer: Schizont (with merozoites)

Flashcard 10: Following is an egg of: _____

Answer: Enterobius vermicularis