Liver mass classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]

Overview

Liver mass may be classified according to imaging features (hyperechoic vs. hypoechoic), histopathological origin (benign vs. malignant), and distribution (single/focal/solitary vs. multiple).

Classification

Liver mass may be classified according to imaging features, histopathological origin, size, and distribution

• Imaging features

• Hyperechoic
• Hypoechoic

• Histopathological origin

• Benign
• Malignant

• Distribution

• Single (also known as "solitary" or "focal")
• Multiple

• The table below summarizes the classification of liver masses according to histopathological origin.

Classification of liver mass
Benign	Malignant
Hepatic hemangioma Focal nodular hyperplasia Hepatic adenoma Idiopathic noncirrhotic portal hypertension Nodular regenerative hyperplasia Regenerative nodules	Hepatocellular carcinoma Cholangiocarcinoma Metastatic disease

• The table below summarizes the classification of liver masses according to distribution.

• The table below summarizes the classification of liver masses according to imaging features.

References

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