RT Book, Section A1 Soares, Kevin C. A1 Pawlik, Timothy M. A2 Zinner, Michael J. A2 Ashley, Stanley W. A2 Hines, O. Joe SR Print(0) ID 1160044172 T1 Benign Liver Neoplasms T2 Maingot's Abdominal Operations, 13e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9780071843072 LK accesssurgery.mhmedical.com/content.aspx?aid=1160044172 RD 2024/04/20 AB Benign liver neoplasms encompass a variety of liver lesions, each with distinct pathologic, radiographic, and molecular characteristics. These include hemangioma, focal nodular hyperplasia, hepatocellular adenoma, and other less commonly seen lesions (Table 57-1). Benign liver lesions occur in up to 20% of the population and far surpass the incidence of malignant liver lesions. With the increased utilization of cross-sectional imaging, these tumors are being identified more frequently. Benign liver lesions are usually asymptomatic and are generally observed. Surgical intervention is warranted in symptomatic patients, cases where malignancy cannot be excluded, or if there is a potential for malignant transformation or associated complications (Fig. 57-1). Liver lesions with equivocal imaging characteristics can lead to diagnostic uncertainty resulting in important therapeutic ramifications. As a result, a thorough understanding of benign liver neoplasms is necessary to more accurately and appropriately screen patients for expectant management versus surgical intervention.