In 2003 a large proportion of the world’s paediatric radiation oncologists met in Lyon  for the International Congress of Paediatric Radiation Oncology .This meeting was a wonderful success and out of  it arose our new scientific society, PROS.

PROS appreciates the true need of each paediatric radiation oncologist  to have a space to discuss clinical cases through our Internet-based dialogue (the Forum)  which proves that not even the most experienced practitioner can cope alone with all the different situations because the latter are too numerous, too varied, too specific or too rare. Large societies such as the SIOP or COG are, of course, also very useful  in this regard but supply clinical trial results and answers to more general issues rather than providing specific help with the technical and clinical aspects of paediatric radiotherapy.

Our plans are to make use of technological innovations to generate tools for dialogue - we aim to provide you with a virtual forum onto which we can transfer clinical cases and all the information that you need to take a decision.
In a near future you will access of full dicom and dicom-rt tools which will allow you to compare dose distributions, treatment planning and proposals for target volume delineation.
Strong relationship have been established with ASTRO (The Red Journal is the official journal of the PROS)  and the ESTRO (annual teaching course of Paediatric Radiation Oncology start in December 2009 ).

Every two years PROS organizes its own international meeting (Barcelona 2007, Montreal 2009, Venice 2011) and  in the even numbered years our meeting is  in conjunction with SIOP congress (Berlin 2008, Boston 2010).:It is clear that PROS , only 5 years old , is fully integrated into the scientific community.
I cannot sign off without giving a special thank you to Giulio D’Angio, who was a fantastic motor for the meeting in Lyon and thus for the birth of PROS.

I am pleased to welcome you now to PROS and I very much hope that this new society will meet your expectations.