[The differentiation characteristics of neural derivatives in rat teratomas].

Peculiarities of differentiation in teratomas obtained by transplantation of 9- and 11-day-old Wistar rat embryos under testicle capsule of adult rats. The main portion of the teratoma is represented by neural derivatives, i.e. by neural tissue foci with pyramidal, stellate and fusiform neural cells, glial cells, and a developed capillary net. Nervous fibers and ganglia-like structures have also been revealed. At the same time, cytoarchitectonics of cerebral cortex does not form in neural areas.