Clinical studies using radiocolloid in chyluria.

Very little radioactive colloid, injected subcutaneously is excreted in urine by the normal kidney. In chyluria patients, however, radiocolloid injected subcutaneously (not venously) is passed through in larger quantities in the urine to the control patients, because of the lymphatic communication with urinary tract. As far as we investigated, measurement of the radiocolloid in urine is a valid clinical test for chyluria patients.