One in four British cancer patients are unlikely to live longer than six months after diagnosis because they - and GPs - are missing signs of the disease, new figures show. Nearly 90000 Britons do not know they have got cancer until they arrive at accident and emergency wards, by which time only 36% will live longer than a year.Figures for hospitals in London show that one in four patients who are diagnosed with cancer in casualty wards will be dead within two months. And the statistics are likely to be similar across the country, health experts have warned.Researchers based at London Cancer measured the survival of nearly 1000 patients diagnosed following emergency presentation at 12 accident and emergency departments across north east and central London and west Essex during 2013.They found that average survival was less than six months, with only 36% of patients surviving beyond one year.Half of all patients under the age of 65 had died by 14 months from diagnosis, with 55% surviving beyond one year.In the category of those aged between 65 and 75, half had died by five months and only 25% made it past one year. And, for patients aged over 75, 50% had died after just three months, with only 25% surviving past a year...