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Tropozoa
Question | Answer |
---|---|
Brain abscess in HIV (seen as ring-enhancing brain lesions on CT/MRI) | Toxoplasma gondii |
bloating, flatulence, foul-smelling, fatty diarrhea (often seen in campers/hikers) | Giardia lamblia |
Trophozoites or cysts in stool | Giardia lamblia |
Bloody diarrhea (dysentery), liver abscess, RUQ pain | Entamoeba histolytica |
Trophozoites (with RBCs in the cytoplasm) or cysts (with multiple nuclei) in stool | Entamoeba histolytica |
Oocysts on acid fast stain | Cryptosporidium |
Liver abscess | Entamoeba histolytica |
Severe diarrhea in AIDS | Cryptosporidium |
Oocysts in cat feces, crosses placenta | Toxoplasma gondii |
Classic Triad: Chorioretinitis, hydrocephalus and intracraneal calcifications | Toxoplasma gondii |
Tachyzoite on biopsy | Toxoplasma gondii |
Rapidly fatal meningoencephalitis | Naegleria fowleri |
Swimming in freshwater lakes ; enters via cribriform plate | Naegleria fowleri |
Amoebas in spinal fluid | Naegleria fowleri |
Tsetse fly, a painful bite | Trypanosoma brucei |
Trypanosoma brucei treatment | Suramin: blood borne disease Melarsoprol: CNS penetration |
African sleeping sickness: enlarged lymph nodes, recurring fever, somnolence, coma | Trypanosoma brucei |
Trophozoite ring form within RBC, schizont containing merozoites | Plasmodium |
Severe; irregular fever patterns; parasitized RBCs occlude capillaries in brain (cerebral malaria), kidneys, lungs | P. falciparum |
When treating with Quinidine or Primaquine test for | G6PD deficiency |
"Maltese cross" | Babesia |
Ixodes Tick | Babesia, Borrelia burgdorferi |
Chagas' disease: dilated cardiomyopathy, megacolon, megaesophagus; predominantly in South America | Trypanosoma cruzi |
Reduviid bug ("kissing bug") | Trypanosoma cruzi |
Trypanosoma cruzi treatment | Benznidazole or nifurtimox |
Macrophages containing amastigotes | Leishmania donovani |
Sandfly | Leishmania donovani |
Leishmania donovani treatment | Sodium stibogluconate |
Vaginitis: foul-smelling, greenish discharge; itching and burning; | Trichomonas vaginalis |
Trophozoites (motile) on wet mount | Trichomonas vaginalis |
Strawberry cervix | Trichomonas vaginalis |
Trichomonas vaginalis | Metronidazole for patient and partner (prophylaxis) |