Elan Novis1, Avi Raman2, Fiona Maclean3, Enzo Lazzaro2. 1. Prince of Wales Hospital, Randwick, New South Wales, Australia. 2. Department of Urology, Royal North Shore Hospital, St Leonards, New South Wales, Australia. 3. Douglass Hanly Moir Pathology, Sydney, New South Wales, Australia.