Dame Esther Rantzen has admitted she won't be around "for much longer" amid her cancer battle. The veteran broadcaster, 85, was diagnosed with incurable lung cancer three years ago and has since stopped having treatment, but issued a candid update on Saturday. The TV star explained that it was to her "astonishment" that she had survived so long as she marked the passing of time since her diagnosis, but is gearing up to face another scan, which will explain to her just how the disease has