Dear esteemed colleagues and friends,

It is our great pleasure to announce and invite you to the 10^th international Meeting ‘Challenges in Endourology’ (CIE) which will be held in Istanbul, Turkey, September 6-8^th, 2020.

The organizers are proud to have managed turning CIE into a congress of excellence in academic and scientific terms, able to offer an innovative and up-to-date programme, to demonstrate cutting-edge technologies, and to broaden the horizons of its attendees.

In CIE 2020, participants will be given the opportunity to attend a highly educational meeting through a variety of session types, among which educational courses, workshops and live surgery sessions that stand out for their educational effectiveness. No less important is the opportunity given to delegates to present their own work through several poster and video sessions, chaired by the most eminent experts in the field.

The 10^th in a row meeting is expected to become a meeting point for experienced urologists, young urologists and trainees, interested in the field of Endourology.

We welcome you to beautiful Istanbul and invite you to become one of the outstanding members of our friendly team in this engaging Meeting.

Jean de la Rosette, Turkey	Stavros Gravas, Greece	Herrmann Thomas, Switzerland