Final answer:
The second most common benign liver tumor is hepatocellular adenoma. It occurs mainly in women of childbearing age who have taken oral contraceptives for a long time. Unlike hepatocellular adenoma, hemangioma is the most common benign liver tumor.
Step-by-step explanation:
The second most common benign liver tumor is hepatocellular adenoma. Hepatocellular adenoma is a rare liver tumor that occurs mainly in women of childbearing age who have taken oral contraceptives for a long time. These tumors are usually non-cancerous, but they have the potential to become malignant.
Unlike hepatocellular adenoma, hemangioma is the most common benign liver tumor, but it is not the second most common. Hemangiomas are made up of a tangle of blood vessels and are usually harmless.
Focal nodular hyperplasia (FNH) is another type of benign liver tumor, but it is less common than hepatocellular adenoma and hemangioma. FNH is characterized by the abnormal growth of liver cells and the formation of scar tissue.
Liver cysts, on the other hand, are not considered tumors. They are fluid-filled sacs that develop within the liver, and they are usually benign and do not cause symptoms.