Calcifying Nested Stromal-Epithelial Tumor

**Semantic type:** Neoplastic Process

**Definition:** A rare malignant tumor that arises from the liver and occurs in children. It is characterized by the presence of nested epithelioid and spindle cells. Desmoplasia, calcifications, and bone formation may also be present.

**Synonyms:** - CNSET - Calcifying Nested Epithelial Stromal Tumor of the Liver - Calcifying Nested Epithelial-Stromal Tumor of the Liver - Calcifying Nested Stromal Epithelial Tumor of the Liver - Calcifying Nested Stromal-Epithelial Tumor of the Liver - Calcifying nested epithelial stromal tumor