1 SEUG - South European Uroncological Group, Lisboa, Portugal, (Av.5 de Outubro 72 6°B, Lisboa, Portugal). Electronic address: calais@seug-gpgu.org.
2 Department of Pathology, The Christie Hospital, Manchester, UK, The Christie NHS Foundation Trust, Wilmslow Road, Manchester, M20 4BX, UK. Electronic address: pedro.oliveira@christie.nhs.uk.