肝母细胞瘤系一种具有胚胎性特点的肝脏原发性上皮性恶性肿瘤。最常见于2岁以内的婴幼儿。是一种少见的恶性肿瘤,其生长速度比较快,数月内多数死亡。该瘤对化疗和放疗均不敏感,目前较有希望的疗法仍为手术切除。随着近年来免疫学的进展,提示在治疗肿瘤时,注射病毒可有良好的作用。已知许多病毒对实验动物或人类肿瘤细胞都有溶瘤作用。临床曾报道急性白 Hepatoblastoma is a primary epithelial malignancy of the liver with embryonic features. The most common are infants and young children within 2 years of age. It is a rare malignant tumor that grows faster and most of them die within a few months. The tumor is not sensitive to chemotherapy and radiotherapy, and the more promising therapy is still surgical resection. With the development of immunology in recent years, it has been suggested that the injection of virus can have a good effect when treating tumors. Many viruses are known to have oncolytic effects on experimental animals or human tumor cells. Clinically reported acute white