Study found the rate of metastatic cancer was significantly higher in cases of local recurrence compared with patients who had undergone total mesorectal excision.
Although guidelines for screening for this cancer target those over 50, the rise in diagnoses in those under 50 is prompting some to question the ideal age for screening.
Non-white women are more likely to be diagnosed with breast cancer before the age of 50, say researchers at the University of Ottawa, who are calling for earlier screening.