Os autores apresentam três casos anátomo-clínicos de teratomas intra-cerebrais, ressaltando a escassez do registro de tais casos na literatura mundial. Acentuam os característicos clínicos de dois de seus casos (casos 2 e 3) que tiveram evolução diferente da comumente descrita, com quadro agudo de hipertensão intracraniana. Os três casos eram diferentes quanto aos aspectos histológicos. Só o primeiro caso tinha o aspecto típico de teratoma. Os outros dois apresentavam aspectos particulares: o caso 2 tinha caracteres de um sarcocarci-noma; o caso 3 apresentava caracteres daquilo que Russell chama de teratoma sólido da pineal, embora não se tivesse podido reconhecer tal glândula.

Three cases of intracranial teratomas are reported. The authors call attention to the fact that such cases are very scarce in world medical literature, and then emphasize the clinical aspects of two of their cases (case 2 and 3), both of which had a different evolution than the one commonly described, presenting an acute picture of intracranial hypertension. The three cases are different as to their histological aspects. Only the first one presents the typical aspects of the classical teratoma. The other two cases present aspects of their own: case 2 has the characteristics of a sarco-carcinoma; case 3 has the characteristics of what Russell calls pineal solid teratoma, even though it was impossible to recognize such a gland.