Table 2.

Histological classification of benign primary hepatic space-occupying lesions

Hepatocellular tumors

Hepatocellular adenoma[2] and hepatic adenomatosis[33]

Intrahepatic bile duct tumors

Bile duct cystadenoma[2]

Intraductal papillary neoplasm[34] and intraductal papillomatosis[2]

Bile duct adenoma[2]

Biliary adenofibroma[35]

Vascular and lymphoid tumors

Cavernous hemangioma[2]

Perivascular epithelioid cell tumor[36]

Hemangioblastoma[37]

Infantile hemangioendothelioma[2]

Lymphangioma and lymphangiomatosis[2]

Muscle, fibrous and adipose tumors

Angiomyolipoma[2]

Leiomyoma[38]

Solitary fibrous tumor[2]

Lipoma[39]

Myelolipoma[40]

Neuronal and neuroendocrine tumors

Neurilemmoma[41]

Plexiform neurofibroma[42] and plexiform neurofibromatosis[43]

Paraganglioma[44]

Pheochromocytoma[45]

Gastrinoma[46]

Vascoactive intestinal peptide tumor[47]

Somatostatinoma[48]

Miscellaneous tumors

Teratoma[49]

Mesothelioma[50]

Endometrioma[51]

Chondroma[52]

Myxoma[53]

Langerhan’s cell histiocytosis[54]

Desmoplastic nested spindle cell tumor[55]

Spongiotic pericytoma[56]