IF Disease Congenital Total Duplication of the Collecting System Excretory Phase with Total Duplication of the Collecting SystemExcretory phase shows duplication of the upper and lower pole moieties of the right kidney. The two systems travel separately into the bladder. Incidental note is made of calyceal diverticulum arising from the upper pole moietyAshley Davidoff MD TheCommonVein.net 126115b