A patient whose skin cancer had spread throughout his body has been given the all-clear after being injected with billions of his own immune cells.
Tests revealed that the 52-year-old man's tumours, which spread from his skin to his lung and groin, vanished within two months of having the treatment, and had not returned two years later.
Doctors attempted the experimental therapy as part of a clinical trial after the man's cancer failed to respond to conventional treatments.
The man is the first to benefit from the new technique, which uses cloning to produce billions of copies of a patient's immune cells. When they are injected into the body they attack the cancer and force it into remission.