Teratoid Hepatoblastoma

**Semantic type:** Neoplastic Process

**Definition:** A mixed epithelial and mesenchymal hepatoblastoma characterized by the presence of heterologous elements. The latter include neuroectoderm, endoderm, or melanin-holding cells. Muscle, cartilage and osteoid may or may not be present.

**Synonyms:** - Mixed Hepatoblastoma with Teratoid Features