Dictionary of Cancer Terms
View in Spanish: Teratoma
Teratoma (tayr-uh-TOH-muh)
A type of germ cell tumor that may contain several different types of tissue, such as hair, muscle, and bone. Teratomas occur most often in the ovaries in women, the testicles in men, and the tailbone in children. Not all teratomas are malignant.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.