Professor Bronwyn Kerr is a Consultant Clinical Geneticist and Honorary Clinical Professor of Paediatrics and Medical Genetics in Manchester, based in Central Manchester University Hospitals NHS Foundation Trust. She studied medicine at the University of Sydney and qualified in paediatrics and genetics in Australia before moving to the UK in 1993. Her clinical and research interests are the disorders of the RAS/MAPK pathway, the “Rasopathies”. This includes Noonan syndrome and the rarer conditions, Costello syndrome and Cardio-facio-cutaneous syndrome. She is particularly interested in developing reliable guidelines for the management of rare diseases and the systematic collection of natural history, with the aim of high quality treatment. She is a member of the medical advisory boards of the International Costello syndrome support group, the Costello Syndrome Family Network (USA), and the Noonan Syndrome Association (UK)