Parasites Tables - Protozoa Organism Entamoeba histolytica...

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Protozoa Organism Diseases Caused Transmission Diagnosis Morphology/Life cycle Notes Entamoeba histolytica Diarrhea ( bloody , invasive), liver abscess, teardrop ulcer in intestine Fecal oral CT for liver abscesses, stool exam Precyst: binucleated w/chromatoid bodies Trophozoite: ingested RBCs , endo/ectoplasm Giardia lamblia Diarrhea (foul smelling, greasy) Fecal oral Stool exam, immunoassay Trophozoite: pear shaped, binucleated, 4 flagella Cryptosporidium spp. Diarrhea (watery), vomiting, abd. pain Fecal oral Acid fast (+), fecal exam, biopsy Round oocyst w/4 motile sporozoites Cyclospora cayatanesis Diarrhea (watery) Fecal oral (fruit/veg) Acid fast (+), fluorescent microscopy Oocyst Intracellular Isospora spp. Diarrhea, malabsorption (AIDS) Fecal oral Acid fast (+), fluor. mic, eosinophils Oocyst w/8 sporozoites Intracellular Trichomonas vaginalis Vaginal itching/discharge, burning urination Sexual Wet mount of discharge No cyst stage, flagellated undulating trophozoite Naegleria fowleri Acute meningitis (95% fatal 1 wk), fever, N/V Fresh water CSF: amoeba, PMNs/protein, gluc Mature amoeba (no cysts) Acanthamoeba spp. Chronic granulomatous brain, corneal infection Fresh water, contact lens CSF: cysts/amoeba; corneal scraping Cyst stage in brain, amoeba *Immunocompromised Balamuthia mandrillaris Chronic granulomatous brain, skin infection Fresh water, soil CSF: cysts/amoeba; skin biopsy Cyst stage in brain, amoeba Toxoplasma gondii Encephalitis, chorioretinitis, PNA (AIDS) Pork, cat feces , congenital CT w/contrast, Ig titer Oocyst (infectious), trophozoite Intracellular Pneumocystis carinii Interstitial pneumonia (AIDS) Respiratory (latent)
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This note was uploaded on 06/17/2008 for the course MOD 2 taught by Professor Cunningham during the Spring '08 term at University of North Texas Health Science Center.

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