Ultrasound of malformed vessels within the fibrous scar of<unk> . Liver tumor types by relative incidence in adults in the United States, with<unk>  at right.<unk> 's most recognizable gross feature is a central stellate scar seen in 60–70% of cases. Microscopically, a lobular proliferation of bland-appearing hepatocytes with a bile ductular proliferation and malformed vessels within the fibrous scar is the most common pattern. Other patterns include telangiectatic, hyperplastic-adenomatous, and lesions with<unk>  large-cell dysplasia. Rarely, these lesions may be multiple or can occur as part of a syndrome with hemangiomas, epithelioid hemangioendothelioma, hepatic adenomas, fibrolamellar hepatocellular carcinoma, vascular malformations of the brain, meningiomas, and/or astrocytomas.
Focal nodular hyperplasia
Nodular regenerative hyperplasia
Gandy–Gamna nodules
Atypical ductal hyperplasia
Lobular carcinoma in situ
Intraductal papilloma
Atypical adenomatous hyperplasia
Fibroadenoma