What is the most common benign tumor of the liver?

Cavernous hemangioma is indeed the most common benign tumor of the liver. These vascular lesions are composed of a network of blood vessels and are typically discovered incidentally during imaging studies, as they often do not present with symptoms. The benign nature of cavernous hemangiomas means they usually do not require treatment unless they cause complications, which is rare. Understanding this condition is crucial for recognizing its characteristics on ultrasound, where it typically appears as a well-defined, hypervascular lesion.

Liver adenomas, while also benign, are less common compared to cavernous hemangiomas and often occur in younger females, particularly those using oral contraceptives. Focal Nodular Hyperplasia (FNH) is another benign liver tumor characterized by a central scar and is also less prevalent than cavernous hemangiomas. Hepatic lipomas, which are rare benign tumors composed of adipose tissue, do not typically have the same frequency as the others. Each of these lesions has distinct presentation and epidemiology, but cavernous hemangioma remains the most frequently encountered benign liver tumor.