[Cystic mesenchimal hamartoma of the liver in two-year-old patient--case report].

Mesenchymal hamartoma is an uncommon benign hepatic tumor arising from the mesenchyme of the portal triad. This lesion is relatively uncommon, representing 5% of all primary hepatic pediatric tumors. This form of hamartoma usually presents before the age of 2 years, typically with abdominal swelling as the initial symptom. The classic management of these lesions has been excision either by hepatic lobectomy or wedge resection. We present a case of 2-year-old girl with a right hepatic lobe tumor, 66 x 57 x 71 in diameter that was completely removed by right hepatic lobectomy.