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Protozoan Trigger Words

Terms in this set (93)

Amebas
Protozoan movement by pseudopodia or amoeboid movement
Cyst
Protozoan infective stage
Trophozoite
Protozoan invasive stage
Entamoeba histolytica
Amebic dysentery
Entamoeba histolytica
Protozoan forming flask-shaped ulcers in large intestinal mucosa
Entamoeba histolytica
Pathogenic amebic cyst possessing 4 nuclei
Entamoeba histolytica
Diagnosis made by observing trophozoite with ingested RBCs
Entamoeba histolytica
Extraintestinal amebiasis
Entamoeba histolytica
Anchovy sauce/paste aspiration from hepatic abscesses
Entamoeba dispar
Commensal ameba
Entamoeba dispar
Differentiated from Entamoeba histolytica by lack of ingested RBCs
Naegleria
Opportunistic ameba living in warm still water of lakes and ponds
Naegleria
Trophozoites penetrate the nasal mucosa and cribiform plate
Naegleria
Primary Amebic Meningoencephalitis (PAM)
Naegleria
Brain-eating Amoeba
Acanthamoeba
Amebic infection leads to keratitis and corneal ulceration
Acanthamoeba
Granulomatous Amebic Encephalitis (GAE)
Balamuthia
Amebic infection isolated from baboon brain
Balamuthia
Newly isolated ameba now shown to produce GAE
Flagellates
Protozoan movement by flagella
Giardia lamblia
Trophozoites possess ventral sucking discs
Cyst
Infective stage of Giardia
Giardia lamblia
Traveler's Diarrhea after 10-30 days post ingestion of cysts
Giardia lamblia
Protozoan causing Malabsorption Syndrome with increased fat and mucus in stool
Giardia lamblia
Diagnosis with Enterotest: Gelatin capsule string test
Giardia lamblia
Trophozoite contains two large nuclei and anterior flagella
Trophozoite
Invasive stage of Giardia
Trichomonas vaginalis
Protozoan STD
Trichomonas vaginalis
Genitourinary Protozoan
Trichomonas vaginalis
Protozoan with undulating membrane and anterior tuft of flagella
Trophozoite
Infective stage of Trichomonas
Trichomonas vaginalis
Exhibits rapid, jerky motility on wet slide preparation
Trichomonas vaginalis
Trophozoite thrives at pH 5-6
Trichomonas vaginalis
Protozoan causing frothy, malodorous, creamy discharge from vagina
Leishmania
Vector: Sandfly (Phlebotomus)
Leishmania
Amastigotes found in macrophages (LD bodies)
Amastigote
Diagnostic stage of Leishmania
Promastigote
Infective stage of Leishmania
Leishmania tropica
Cutaneous Leishmaniasis
Leishmania tropica
Oriental sore, Baghdad boil, Kandahar sore
Leishmania tropica
Sandfly transmission leading to self-healing, ulcerated, pus-filled lesions
Leishmania braziliensis
Mucocutaneous Leishmamiasis
Leishmania braziliensis
Sandfly transmission leading to indurated ulcers in oral and nasal mucosa
Leishmania braziliensis
Sandfly transmission leading to massive disfigurement of the nose if left untreated
Leishmania donovani
Visceral Leishmaniasis
Leishmania donovani
Kala-Azar (Black Fever)
Leishmania donovani
Sandfly transmission leading to disseminated organ involvement
Leishmania donovani
Sandfly transmission leading to malaria-like spiking chills and fever
Trypomastigote
Infective stage of Trypanosomes
Trypanosoma
Hemoflagellates with undulating membrane and flagellum
Trypanosoma brucei
Vector: Tsetse fly (Glossina)
Trypanosoma brucei
African Sleeping Sickness
Trypanosoma brucei
African Trypanosomiasis
Trypanosoma brucei
Protozoan that undergoes extreme antigenic variation of its surface glycoprotein
Trypanosoma brucei
Trypomastigote invades central nervous system and causes CNS vasculitis
Trypanosoma brucei
Winterbottom's Sign (posterior cervical lymphadenopathy)
Trypanosoma brucei
Trypanosoma with no amastigote stage
Trypanosoma cruzi
Vector: Reduvid "Kissing" Bug (Triatoma)
Trypanosoma cruzi
Chaga's Disease
Trypanosoma cruzi
Romana's Sign (unilateral edema of the eyelids and conjunctivitis)
Trypanosoma cruzi
American Trypanosomiasis
Trypanosoma cruzi
Amastigotes found in cardiac and smooth muscles
Trypanosoma cruzi
Trypanosome amastigote found in macrophages
Trypanosoma cruzi
Presence of chagoma at skin site where vector feces is scratched in
Trypanosoma cruzi
Protozoan causing myocarditis from amastigotes proliferating in cardiac muscle
Toxoplasma gondii
Only protozoan that is transplacental in pregnant women
Cat
Definitive host of Toxoplasma
Oocyst
Infective stage of Toxoplasma
Toxoplasma gondii
Protozoan leading to congenital infection
Toxoplasma gondii
Protozoan transmission via cat feces in kitty litter
Toxoplasma gondii
Protozoan infection of fetus causing cerebral calcifications and hydrocephalus
Toxoplasma gondii
Tachyzoites seen in early, more acute infections
Toxoplasma gondii
Bradyzoites seen during chronic infections
Toxoplasma gondii
Ingestion of undercooked meat containing bradyzoites
Toxoplasma gondii
Ocular infection with this protozoan causes chorioretinitis in fetus
Cryptosporidium
Protozoan with acid-fast staining oocysts
Oocyst
Infective and diagnostic stage of Cryptosporidium
Cryptosporidium
Oocysts frequently found in contaminated public water systems causing frequent self-limiting traveler's diarrhea
Cryptosporidium
Most common Coccidia infection causing chronic diarrhea in HIV/AIDS
Cyclospora
Less common Coccidia causing watery diarrhea via feces in contaminated foods (fruits)
Isospora
Less common Coccidia infection from contaminated foods most noted with HIV/AIDS patients and causing diarrhea
Plasmodium
Vector: Anopheles mosquito
Plasmodium
Malaria
Sporozoites
Plasmodium infective stage of human host
Merozoites
Plasmodium infective stage of red blood cells
Plasmodium
Cyclic paroxysms of these species can vary considerably
Sporogony
Sexual cycle of Plasmodium
Schizogony
Asexual cycle of Plasmodium
Plasmodium falciparum
Deadliest species causing malaria
Plasmodium falciparum
Black Water Fever (Intravascular hemolysis leading to hemoglobinuric nephrosis)
Babesia
Texas Cattle Fever
Babesia
Protozoan transmitted by Ixodes tick
Babesia
Sporozoan with clinical signs and symptoms similar to Plasmodium falciparum but lacking cerebral complications (in USA)
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