Mite found in a urinary sediment. 

We found this in a urinary sediment. We thought first it is Sarcoptex scabiae (*) but we asked a renowned parasitologist who said it is not. However, they confirmed it is a mite from either urine or contamination from skin (**). Dr Serban Nicolescu

We suggest a complement reading of this article:  "Clinical Significance of Mites in Urine" http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1317186/

(*) A mite infesting the skin that causes scabies

(**) Some mite species goes up the uréthra to lay their eggs in the bladder. Eggs found in urine can be mistaken for artefact or eggs from an other parasite