Breast cancer during follow-up and progression – A population based cohort on new cancers and changed biology

Background Emerging data indicate an important role for biopsies of clinically/radiologically defined breast cancer ‘recurrences’. The present study investigates tumour related events (relapses, other malignancies, benign conditions) after a primary breast cancer diagnosis. Patients and methods The cohort includes 2102 women, representing all patients, with primary invasive breast cancer during 2000–2011 in the county of Värmland, Sweden. A...