What is the most common liver tumor in pediatrics?

Hepatoblastoma is recognized as the most common primary liver tumor found in pediatric patients. This tumor typically occurs in children under the age of 3 and is embryonic in origin, arising from hepatocytes in the liver. Its incidence peaks around the age of 1, and it is associated with certain genetic conditions, including Beckwith-Wiedemann syndrome and familial adenomatous polyposis.

The prognosis for hepatoblastoma can be favorable, especially with early detection and appropriate surgical intervention, although the treatment often involves a combination of surgery and chemotherapy. Hepatoblastoma accounts for the majority of liver tumors in children, which is significant in differentiating it from other liver tumors that are more commonly found in adults.

In contrast, while hepatocellular carcinoma can occur in children, it is much less common than hepatoblastoma and typically arises in older children and adolescents, often associated with underlying liver disease or chronic hepatitis. Focal nodular hyperplasia is a benign tumor that is also rare in children and mostly seen in adults. Hemangiomas, while they can be found in pediatric patients and are the most common benign liver tumors, are usually asymptomatic and often do not require intervention, making them less significant compared to the aggressive nature and