Breast cyst. A. Simple cyst Breast cyst. A. Simple cyst. Ultrasound image of the mass shows it to be anechoic with a well-defined back wall, characteristic of a cyst. B. Complex solid and cystic mass. (C) Complex solid and cystic mass characteristic of intracystic papillary tumor. (Photos used with permission of Dr. Anne Turnbull, Consultant Radiologist/Director of Breast Screening, Royal Derby Hospital, Derby, UK). Source: The Breast, Schwartz's Principles of Surgery, 10e Citation: Brunicardi F, Andersen DK, Billiar TR, Dunn DL, Hunter JG, Matthews JB, Pollock RE. Schwartz's Principles of Surgery, 10e; 2014 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/Books/980/bru_ch17_f23c.png&sec=100394969&BookID=980&ChapterSecID=59610859&imagename= Accessed: December 19, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved