I wouldn't think cancer would develop from a biopsy. However, things in your breast may have changed since last year and the extra films will give them a better idea of what they are seeing. Mine wanted an ultrasound along with the extra films.
Moderator UC and Breast Cancer forums
Sheri-42 years old
Diagnosed UC/IBS April 2009-Left sided Jan 2013 Endo showed gastritis and Colonoscopy showed only 2 cm of rectal inflammation
Diagnosed in Jan 2013 with Chronic Uticartia
Meds-2 Lialda, Dexilant, Allegra, Singulair, Vitamin D3, Hydroxyzine (as needed), probiotics, Canasa 3 x week