hepatoblastoma

[hĕp′ə-tō-blă-stōmə]
n.
  1. A malignant neoplasm occurring in young children, primarily in the liver, composed of tissue resembling embryonic hepatic epithelium.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.