[Case report: instillation of povidone iodine for the treatment of idiopathic chyluria].

A 77-year-old woman who had never lived in a tropical area was referred to our hospital in November 2006 because of hypoproteinemia and chyluria. Cystoscopy revealed milky urine flowing from left ureteral orifice. Computed tomography showed small lymph nodes around the left side of the aorta but no carcinoma could be seen. We diagnosed her with idiopathic chyluria and recommended low fatty meals, but chyluria did not disappear. In March 2007 povidone iodine was instilled retrogradedly and chyluria disappeared immediately. As of December 2007, chyluria has not recurred.