Table 1.

Histological classification of benign liver lesions

Epithelial lesions:

− Hepatocytes:

– Hepatocellular adenoma

– Focal nodular hyperplasia

– Nodular regenerative hyperplasia

– Focal fatty change

– Biliary cells:

– Bile duct adenoma

− Biliary hamartoma (von Meyenburg complex)

Nonepithelial lesions:

− Mesenchymal:

– Hemangioma

– Angiomyolipoma

– Lipoma

– Myolipoma

− Heterotopia:

– Adrenal, pancreatic, or spleen tissue

− Others:

– Peliosis hepatis

– Inflammatory pseudotumor