Adenomatous liver hypoplasia (Hepatic adenoma) is a benign neoplasm characterized by the presence of atypically growing epithelial cells in the liver structures and consisting of alveolar structures. There are malignant and benign forms of liver adenoma. In the latter case, the tumor is large and causes compression of nearby vital organs. A malignant adenoma node is characterized by slow development, lack of influence on neighboring structures and a satisfactory prognosis.