Six existing minimally invasive techniques for the treatment of primary and
secondary malignant hepatic tumors-radio-frequency ablation, microwave abl
ation, laser ablation, cryoablation, ethanol ablation, and chemoembolizatio
n-are reviewed and debated by noted authorities from six institutions from
around the world. All of the authors currently believe that surgery remains
the treatment of choice for patients with resectable hepatic tumors. Howev
er, the clinical results of each of the minimally invasive techniques prese
nted have exceeded those obtained with conventional chemotherapy or radiati
on therapy. Thus, for nonsurgical patients, these techniques are becoming s
tandard independent or adjuvant therapies. In addition, with continued impr
ovement in technology and increasing clinical experience, one or more of th
ese minimally invasive techniques may soon challenge surgical resection as
the treatment of choice for patients with limited hepatic tumor.