Embryonal neoplasm
Embryonal neoplasm
Definition
A usually malignant neoplasm composed of primitive (immature) tissues that resemble fetal tissues. Medulloblastoma, Ependymoblastoma, Pineoblastoma, and Wilms tumor are representative embryonal neoplasms. --2003
Also known as embryonal neoplasm, embryonal tumor, embryonal tumour — per MONDO