We don't have synonyms for teratomas yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are teratoma, hematomas and keratoma.
(n) :
(pathology) A benign or malignant tumour, especially of the gonads, that arises from germ cells and consists of different types of tissue such as skin, hair, or muscle.
(n) :
(pathology) A benign or malignant tumour, especially of the gonads, that arises from germ cells and consists of different types of tissue such as skin, hair, or muscle.