Tumors of the Liver
The increasing use of imaging modalities has led to a dramatic rise in the detection of liver lesions, making it crucial to distinguish benign from malignant lesions. The distinction is important in the geriatric patients who pose a higher risk for malignancy and may undergo unnecessary interventions. Benign liver tumors affect approximately 20% of the population, the two most common being hemangiomas and focal nodular hyperplasia. Other benign tumors include hepatocellular adenoma, regenerative nodular hyperplasia, and simple cysts, as well as cysts associated with polycystic liver disease. Magnetic resonance imaging (MRI) and computed tomography are the most useful diagnostic tests. Most of these tumors have a benign course, with no intervention necessary. Malignant tumors include hepatocellular carcinoma, intrahepatic cholangiocarcinoma, and liver metastasis. Malignant tumors have characteristic appearance on dynamic computed tomography and MRI. Liver biopsy is an option if diagnosis is uncertain.
KeywordsLiver Transplantation Autosomal Dominant Polycystic Kidney Disease Choledochal Cyst Focal Nodular Hyperplasia Intrahepatic Cholangiocarcinoma
- 14.Bruix J, Sherman M. AASLD practice guidelines update 2011. Hepatoloy. 2011;53;1021–23—full website of AASLD practice guidelines. http://www.aasld.org/practiceguidelines/Pages/NewUpdatedGuidelines.aspx.