Hepatoblastoma

Hepatoblastoma has been diagnosed histologically in both the dog and the cat. It is a neoplastic proliferation of pluripotent hepatic stem cells (Shiga et al., 1997; Ano et al., 2011). Histologically, this cancer presents as ovoid hepatocytes with a combination of both embryonic hepatocyte and biliary epithelial immunological markers present (Shiga et al., 1997).