Sensitivity of mammography depends on menstrual phaseBMJ 1997; 315 doi: https://doi.org/10.1136/bmj.315.7106.445e (Published 23 August 1997) Cite this as: BMJ 1997;315:445
- Kamran Abbasi
Mammography carried out in the second half of the menstrual cycle may miss breast cancer in women who have used oral contraception or hormone replacement therapy, a Canadian study shows.
Dr Cornelia Baines and her team from the University of Toronto examined data from the Canadian national breast screening study, which recruited 8887 menstruating women aged 40-44 years. They suggest that the higher risk of a false negative result on mammography …