Well-differentiated/dedifferentiated liposarcoma. A Well-differentiated/dedifferentiated liposarcoma. A. Axial image of right retroperitoneal well-differentiated liposarcoma, which appears as an area of abnormal appearing fat (arrows). B. Coronal image showing area of dedifferentiation, which appears as a more solid area within or adjacent to abnormal appearing fat (arrowheads). Source: Retroperitoneal Sarcomas, Textbook of Complex General Surgical Oncology Citation: Morita SY, Balch CM, Klimberg V, Pawlik TM, Posner MC, Tanabe KK. Textbook of Complex General Surgical Oncology; 2018 Available at: http://hemonc.mhmedical.com/DownloadImage.aspx?image=/data/books/2209/fig-27-01.png&sec=168938365&BookID=2209&ChapterSecID=168938360&imagename= Accessed: January 02, 2018 Copyright © 2018 McGraw-Hill Education. All rights reserved