Hepatoblastoma - Embryonal pattern
Image Description
Epithelial hepatoblastoma may contain mixed embryonal (seen on the left) and fetal patterns (seen on the right). Embryonal areas appear less differentiated (immature), with disordered architecture, higher nuclear:cytoplasmic ratios, increased cellular atypia, and poorly-defined cell borders. Fetal areas comprise cords of relatively uniform tumor cells (mature) with abundant cytoplasm and minimal atypia, resembling mature hepatocytes.