Trichomonas vaginalis
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Epidemiology
- common cause of vaginitis[2]
- sexually transmitted disease[2]
Laboratory
- Trichomonas vaginalis in specimen
- direct wet mount examination of vaginal fluid, prostatic fluid or urine sediment
- morphologically resembles Pentatrichomonas hominis, but is larger (up to 23 um) [P. hominis found in feces]
- undulating membrane extends only 1/2 the length of the body
- vaginal pH > 4.5 (specificity is low)[3]
- Trichomonas vaginalis antigen
- immunoassays commercially available
- Trichomonas vaginalis identified by culture, 90% sensitive
- Papanicolaou smears have poor sensitivity
- Trichomonas vaginalis nucleic acid becoming gold standard[3]
Management
- see trichomoniasis
More general terms
Additional terms
References
- ↑ Clinical Diagnosis & Management by Laboratory Methods, 19th edition, J.B. Henry (ed), W.B. Saunders Co., Philadelphia, PA. 1996, pg 1278
- ↑ 2.0 2.1 2.2 Miller M, Liao Y, Gomez AM, Gaydos CA, D'Mellow D. Factors associated with the prevalence and incidence of Trichomonas vaginalis infection among African American women in New York city who use drugs. J Infect Dis. 2008 Feb 15;197(4):503-9. PMID: https://www.ncbi.nlm.nih.gov/pubmed/18275272
Van Der Pol B, Kwok C, Pierre-Louis B, Rinaldi A, Salata RA, Chen PL, van de Wijgert J, Mmiro F, Mugerwa R, Chipato T, Morrison CS. Trichomonas vaginalis infection and human immunodeficiency virus acquisition in African women. J Infect Dis. 2008 Feb 15;197(4):548-54. PMID: https://www.ncbi.nlm.nih.gov/pubmed/18275275 - ↑ 3.0 3.1 3.2 3.3 Medical Knowledge Self Assessment Program (MKSAP) 17, American College of Physicians, Philadelphia 2015