Mammogram images (A, B) indicate an irregular mass in the upper outer left breast. Ultrasound of the left breast (C) shows this to be a solid, hypoechoic mass with very irregular borders and confirms its suspicious nature. The mass was subsequently biopsied and demonstrated to be an invasive ductal carcinoma. Source: Breast Cancer and Related Diseases, Gynecologic Oncology: Clinical Practice and Surgical Atlas Citation: Karlan BY, Bristow RE, Li AJ. Gynecologic Oncology: Clinical Practice and Surgical Atlas; 2015 Available at: http://hemonc.mhmedical.com/DownloadImage.aspx?image=/data/books/1381/kar_ch15_f003c.png&sec=75544511&BookID=1381&ChapterSecID=75544487&imagename= Accessed: March 06, 2018 Copyright © 2018 McGraw-Hill Education. All rights reserved