Parasitogy Razzle

Only parasite whose trophozoite stage contains ingested RBCs.

Entamoeba hystolytica

Plasmodium species which may contain Ziemann's stippling.

Plasmodium malariae

Parasite that has been proven as a cause of bladder cancer.

Schistosoma haematobium

Parasite which can be confused with Plasmodium except it is found in person's who have been to a wooded area usually in the northeastern part of the US not Africa.

Bebesia sp.

May be acquired by pregnant females when exposed to contaminated cat feces.

Toxoplasma gondii

Causes death within several days when person is infected by entrance of parasite into brain via nasal passages.

Naegleria fowleri

Parasite that is associated with poor contact lens care.

Ancanthamoaba sp.

Parasite whose trophozoite has been called the "little old man".

Giardia intestinalis

Parasite described as a barrel shape with clear (hyaline) plugs on each end.

Trichuris trichuria

is the largest adult intestinal nematode.

Ascaris lumbrioides

What parasite (discussed in our class) is associated with rhabditiform and filariform larvae?

Strongyloides stercoralis

parasite which may contain Maurer's dots.

Plasmodium falciparum

Cause of the most common parasitic infection worldwide.

Ascaris lumbricoides

Repeated infections with this parasite causes "ground itch"; larva migration is known as "cutaneous larval migrans".

Ancylostoma duodenale

Diagnosis of infection with this parasite can be made by removal of worm from skin blister.

Dracunculus medinensis

Parasite which is the cause of river blindness.

Onchocerca volvulus

Cellophane tape prep from anus is used for diagnosis of this parasite.

Enterobius vermicularis

Infection with this parasite may cause cysticercosis (infection of tissue with larvae).

Taenia solium

Infection in humans causes hydatid cyst which may contain hydatid sand.

Echinococcus granulosus

Common name for Plasmodium malariae.

Quartan malaria

Species of parasite which may cause "swimmer's itch" due to repeated penetration of parasite.

Schistosoma sp.

Parasite(s) which may contain Schuffner's dots.

Plasmodium vivax and Plasmodium ovale

Parasite which usually contains crescent shaped gametocytes.

Plasmodium falciparum

Parasitic infection in which Xenodiagnosis may be used to aid in diagnosis

Trypanosoma cruzi

amoeba which causes amoebiasis (also the common name).

Entamoeba histolytica

is the only pathogenic ciliate known to infect humans.

Balantidium coli

Common name for Plasmodium vivax.

benign tertian malaria

Trophozoites are in tetrads which may resemble a "maltese cross".

Babesia sp.

Parasite whose common name is "bladder fluke" and is found in urine specimens.

Schistosoma haematobium

Parasite which causes an STD and is found in urine and wet prep specimens.

Trichomonas vaginalis

The only pathogenic amoeba.

Entamoeba histolytica

Causes "West African Sleeping Sickness" which is also its' common name.

Trypanosoma brucei gambiense

Mode of transmission is ingestion of undercooked pork and has the common name of "pork tapeworm".

Taenia solium

Common name for Plasmodium ovale.

ovale malaria

Mode of transmission is ingestion of undercooked bear meat or pork that is infected with the parasite.

Trichinella spiralis

Two (2) parasites which may be acquired by humans who eat undercooked or raw freshwater fish.

Diphyllobothrium latum and Clonorchis sinensis

Parasite which has been associated with nephrotic syndrome.

Schistosoma haematobium

Name one (1) of the parasites we discussed which causes elephantiasis.

Brugia malayi

Early stage trophozoites associated with this parasite are considered to be "band" form.

plasmodium malariae

Causes "East African Sleeping Sickness" which is also its' common name.

Trypanosoma brucei rhodiesnse

Referred to as the "beef tapeworm" and the mode of transmission is ingestion of undercooked beef.

Taenia saginata

Humans acquire Babesia sp. through what mode of transmission?

tick bite

Parasite enters human through inhalation of dust via nasal passages, but humans can live for months before any symptoms are seen.

Ancanthamoeba sp.

This parasite is a very common cause of "traveler's diarrhea" and this is also its' common name.

Giardia intestinalis

transmission of this parasite is through the bite of the bloodsucking black fly (Simulium blackfly).

Onchocerca volvulus

Predominant species of malaria worldwide.

Plasmodium vivax

Has the common name "Manson's blood fluke or swamp fever".

Schistosoma mansoni

What is a buccal cavity?

mouth

The buccal cavity of this parasite is long.

Strongyloides stercoralis Rhabitiform

The buccal cavity of this parasite is short.

Strongyloides stercoralis Filariform

common name for this parasite is large intestinal roundworm.

Ascaris lumbricoides

Species of parasite which causes visceral larval migrans.

toxocara

parasite which is transmitted by the Phlebotomus species of sandfly.

Leishmania donovani

his parasite causes "Chagas disease" and this is also its' common name.

Trypanosoma cruci

Mode of transmission for these three (3) genus of parasites is bite of an Anopheles mosquito.

Plasmodium, Wuchereria, Brugia

Has the common name "Oriental blood fluke".

Schistosoma japonicum

his parasite has both corticated and decorticated as well as fertilized and unfertilized eggs.

Ascaris lumbricoides

Parasite whose common name is "broadfish tapeworm".

Diphyllobothrium latum

Parasite which causes hydatid cysts and is best diagnosed by observing hooklets, scolices & cysts in hydatid sand.

Echinococcus granulosus

Has an intermediated host of flour beetle and the common name is "dwarf tapeworm".

Hymenolepis nana

Parasite with the common name "Oriental or Chinese liver fluke".

Clonorchis sinensis

Common name for Plasmodium falciparum.

Malignant malaria or Blackwater fever

Mode of transmission for this parasite is eating undercooked or raw crab or crayfish.

Paragonimus westermani

Transmission of this parasite is through bite of the bloodsucking fly (Chrysops fly).

Loa loa

his parasite is associated with Loffler's syndrome.

Ascaris lumbricoides

Name five (5) parasites whose mode of transmission is skin penetration.

Schistosoma mansoni, japonicum, and haematobium. Strongtloides stercoralis, Necator americanus

Common name of Ancylostoma duodenale.

Old world hookworm

If seen in the peripheral blood, schizonts associated with this parasite indicate a grave prognosis (the patient will not live).

Plasmodium falciparum

This parasite has the common name "kala-azar".

Leishmania donovani

The microfilariae associated with this parasite are found in the skin of humans.

Onchocerca vovulus

Common name of New World Hookworm is associated with this parasite.

Necator americanus

What is the common name of Hymenolepis nana?

dwarf tapeworm

This parasite is contracted by the bite of an infected cat or dog flea.

Dipylidium caninum

What is the common name of Diphyllobothrium latum?

Broadfish tapeworm

T. solium and T. saginata can be told apart in what manner based on the hooklets associated with Taenia species?

T. solium contains numerous hooklets. T. saginata has no hooklets

What is the common name of Hymenolepis dimunita?

rat tapeworm

the most common helminth infection in the US is?

Enterobius vermicularis

Ova of this parasite can remain infective in soil for years due to resistance to chemicals.

Necator americanus

Define parthenogenic.

able to reproduce without fertilization

This parasite is parthenogenic.

Strongyloides stercoralis

Define visceral larval migrans.

migration through the skin

Define ocular larval migrans.

migration to the eye

This parasite is the cause of amoebic dysentery.

Entamoeba histolytica

This parasite contains a vacuole which may take up as much as 90% of the parasite which causes the nucleus' to move to the edge of the cyst.

Blastocystis hominis

This parasite has the common name primary amoebic meningoencephalitis (PAM).

Naegleria fowleri

The most common intestinal protozoa in the US.

Giardia lamblia

The vector associated with Trypanosoma brucei gambiense/rhodesiense is:

Tsetse fly

The two (2) types of Plasmodium that may contain multiple ring forms are:

Vivax and falciparum

the two (2) types of Plasmodium that only contain single ring forms are:

Ovale and Malariae

The parasite associated with infected cat litter is:

Toxoplasma gondii

Parasite which may contain ingested WBCs Also found in tooth scrapings

Entamoeba gingivalis

Define winterbottom's syndrome

enlarged lymph nodes

Why is T. brucie gambense more severe than rhodesiense?

severe CNS impairment within one month

Winterbottom's is caused by what species?

Trypanosoma

This parasite moves using pseudopodia

Dientamoeba fragilis

Excystation and encystation difference

excystation: is where the cyst becomes troph, encystation: is the conversion of troph back to a cyst

The troph of this parasite may contain ingested bacteria

Entamoeba coli

Difference between nocturnal periodicity and diurnal periodicity

Nocturnal periodicity- seen in blood at night Diurnal periodicity- seen in blood during the day

What 3 Filariae have a sheath?

Wuchereria bancrofti Brugia malayi Loa Loa

Does Onchocerca volvulus have a sheath?

no.