Chyluria, the loss of chyle via the urinary tract, is a rare condition among children.
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Non-parasitic forms of childhood chyluria are predominantly observed in Western countries.
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Consistent with chyle leakage from the upper urinary tract or bladder the T2-sequence of the magnetic resonance tomography (MRT)–urography showed a ventral hypointense chyluric layer on top of the hyperintense urine. We then performed a cystoscopy, the leading diagnostic intervention in childhood chyluria, in order to locate a fistula between the lymphatic and urinary system.