benign digestive system neoplasm benign endocrine neoplasm adenoma hepatocellular adenoma https://www.malacards.org/card/hepatocellular_adenoma MedDRA:10019827 UMLS:C0206669 icd11.foundation:1481070735 ONCOTREE:LIAD A benign epithelial neoplasm arising from the hepatocytes. Grossly, it appears as a soft, round mass which often contains areas of hemorrhage and necrosis. Morphologically, the neoplastic cells resemble normal hepatocytes and form plates separated by sinusoids. Most patients have a history of contraceptive or anabolic steroids use. LIAD adenoma, hepatocellular, benign adenoma of liver cells ICDO:8170/0 HCA GARD:0018847 MONDO:0018902 Orphanet:54272 MEDGEN:61655 EFO:0000762 adenoma of the liver cells NCIT:C3758 liver cell adenoma DOID:0050868 hepatocellular adenoma MESH:D018248 liver and intrahepatic bile duct neoplasm benign epithelial neoplasm