MammoPort

A, Contrast-enhanced axial T1-weighted fat-saturated image from baseline MRI before initiation of neoadjuvant therapy shows irregular mass (arrow) in upper inner right breast corresponding to biopsy-proven carcinoma. B, Contrast-enhanced axial T1-weighted fat-saturated image from follow-up MRI performed 3 months after initiation of neoadjuvant therapy shows decrease in size of right breast cancer (arrow). C, Contrast-enhanced axial T1-weighted fat-saturated image 3 months after initiation of neoadjuvant therapy shows new mass (arrow) in upper outer left breast that was assessed as BI-RADS 4. Pathologic examination from MRI-guided core biopsy of new suspicious mass revealed benign usual ductal hyperplasia. No atypia or malignancy was identified. Image courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

Getty Images