Computed tomography (CT)–positron emission tomography (PET) scans before and after resection of liver metastasis from colorectal cancer in a 54-year-old patient. CT scan shows large 10-cm right lobe liver metastasis (left panel), and PET scan findings are strongly positive (middle panel). Two years after right hepatectomy, the patient has no evidence of recurrence and significant hypertrophy of the left lobe (right panel). Source: Liver, 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://accesssurgery.mhmedical.com/DownloadImage.aspx?image=/data/books/980/bru_ch31_f012.png&sec=100401117&BookID=980&ChapterSecID=59610873&imagename= Accessed: November 14, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved