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Hepatocellular Carcinoma in Children: Results of the First Prospective Study of the International Society of Pediatric Oncology Group

From the Department of Pediatric Surgery, Medical University of Gdask, Gdask, Poland.

Address reprint requests to Piotr Czauderna, MD, Department of Pediatric Surgery, Medical University of Gdask, Ul, Nowe Ogrody 1-6, 80-803 Gdask, Poland; email: pczaud{at}amg.gda.pl

PURPOSE: To improve survival and reduce operative morbidity and mortality in children with primary epithelial liver tumors by using preoperative chemotherapy, as well as to collect information on the epidemiology, natural history, and prognostic factors.

PATIENTS AND METHODS: Forty children with hepatocellular carcinoma (HCC) were registered onto the Group for Epithelial Liver Tumors International Society of Pediatric Oncology’s first study from January 1990 to February 1994. The outcome could be analyzed in 39 of those patients. Disease was often advanced at the time of diagnosis; metastases were identified in 31% of the children and extrahepatic tumor extension, vascular invasion, or both in 39%. Multifocal tumors were common (56%). Thirty-three percent of tumors were associated with hepatic cirrhosis. All but two patients received preoperative chemotherapy (cisplatin and doxorubicin).

RESULTS: Partial response was observed in 18 (49%) of 37 patients; there was no response or progression in the remainder. Complete tumor resection was achieved in 14 patients (36%). Twenty patients (51%) never became operable. Overall survival at 5 years was 28%, and event-free survival was 17%. Most deaths resulted from tumor progression (26 of 28). Presence of metastases and pretreatment extent of disease system grouping at diagnosis had an adverse influence on overall survival in multivariate analysis.

CONCLUSION: Survival for pediatric HCC patients is significantly inferior to that for children with hepatoblastoma. Complete tumor excision remains the only realistic chance of cure, although it is often prevented by advanced disease. The presence of metastases is the most potent predictor of poor prognosis. A prospective worldwide cooperation in the field of pediatric HCC should be encouraged to look for novel therapeutic concepts.

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