Definitions for "Germ cell tumor"
A type of tumor that begins in the cells that give rise to sperm or eggs. Germ cell tumors can occur almost anywhere in the body and can be either benign or malignant.
a tumor derived from cells associated with spermatogenesis or oogenesis, including seminoma, embryonal carcinoma, choriocarcinoma and teratoma.
Tumors from cells which are present early in development.