NCIt definition : A rare embryonal neoplasm affecting children. It is associated with DICER1 gene mutation.
This category includes pituitary gland blastoma and pleuropulmonary blastoma.;
Alternative definition : NCI-GLOSS: A mass of rapidly growing cells that begins in embryonic (fetal) tissue.
Embryomas may be benign or malignant, and include neuroblastomas and Wilms tumors.;