article_snippet.sent: Doctors at University College London Hospitals NHS Foundation Trust (pictured) survive for 503 days after diagnosis, compared with 312 days for people assessed through more traditional methods.
article_snippet.sent: This means that surgery may be necessary before a doctor can be sure that the disease is present, resulting in a wait for results.
article_snippet.sent: The health of many cancer patients can deteriorate because these delays mean many cancer patients are not started immediately on lifesaving treatments such as chemotherapy.
highlights_snippet.sent: Some even need surgery to find out before lifesaving treatment can begin .
  