Laboratory findings revealed mild anemia and liver dysfunction in a boy, one year and eight months old, who was admitted to this hospital with vomiting and anorexia as chief complaints. During examination, a liver tumor was detected by ultrasonography of the abdomen. Since the tumor suddenly ruptured while preparations were being made for surgical treatment, emergent laparotomy was applied to right hepatic lobectomy. Bleeding and necrotic tissues were observed due to the ruptured tumor wall. Histological diagnosis was hepatoblstoma of the well-differentiated type. Since the postoperative course was favorable, multidrug chemotherapy using cis-platin was initiated on the 12th postoperative day. After five cycles of treatment, the patient is now 3 years and 6 months old and is healthy and free from disease.
