The number of people surviving cancer has improved hugely in the past 50 years - but experts warn progress has been uneven, with some cancers with the worst survival rates falling further behind. For some, including melanoma skin cancer, 10-year survival is now above 90% in England and Wales, while for all cancers half of patients can expect to live that long. But a London School of Hygiene and Tropical Medicine study said there had been little improvement in those affecting the oesophagus,