Spectrum of parasitic infections in centrifuged urine sediments from a newly developed tertiary care centre in Central India
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Detection of urinary parasites is relatively rare and incidental finding in routine urine examination. Common urinary parasitic infections as described in literature include Trichomonas, Schistosoma hematobium and Microfilaria. Trichomonas vaginalis is known to cause vaginitis and urethritis, and may be found in urine sediments. In this study, the spectrum of urinary parasitic infections that had been reported in the last one and a half year was evaluated, and point prevalence in this zone was estimated. Microbiologist opinion had been taken in the difficult cases. Out of the total centrifuged urine sediments examined, urinary parasitic infection was found in 33 cases. The calculated point prevalence is 0.39%. Most common parasitic infection reported was flagellates (27 cases: 25 T. vaginalis, 2 commensal flagellate closest to Chylomastix), followed by three cases showing eggs of Enterobius vermicularis, one case showing larvae of Strongyloides stercoralis and two cases of ciliate protozoa. One of the ciliate protozoa was Balantidium coli and the other one was Balantidium like ciliate morphologically closest to Chilodonella spp. Pyuria was found in 22 out of the 33 cases and hematuria in 17 out of 33 cases. A fairly wide morphological spectrum of parasites may be diagnosed through microscopic examination of centrifuged urine sediment. They may cause pyuria and haematuria, and morphological awareness helps in prompt and effective management in most cases.
KeywordsBalantidium coli Enterobius vermicularis Protozoa Strongyloides stercoralis Trichomonas vaginalis Urine sediment
The authors acknowledge the valuable contribution of Mr. Pradeep Kumar Gupta (M.Sc. Microbiology), Demonstrator, Department of Microbiology, AIIMS, Bhopal. The authors acknowledge the contribution of all the technical staffs and residents of Department of Pathology and Laboratory medicine, AIIMS, Bhopal.
UK: Collection of patient details, Digital Photography, literature review and writing up of manuscript. KM: Signing out of the reports, Assisting in literature review and writing up of manuscript. NK: Expert opinion and critical review of the manuscript. DJ: Expert opinion and critical review of the manuscript. GG: Signing out of the reports, Assisting in literature review. TS Collection of patient details, Digital Photography. DB: Expert opinion and critical review of the manuscript.
Compliance with ethical standards
Yes; all investigations were done as part of the patients’ management protocol, and no patient was subjected to any procedures or investigations for the sake of this study. Approval from the competent authority of the institute has been taken.
Conflict of interest
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