Origin of lentoids in experimental teratomas derived from early postimplantation rat embryos

Abstract

Experimental teratomas derived from renal isografts of early postimplantation rat embryonic shields were analysed histologically for the presence of lentoids and their relationship with other tissues within the tumour. The observations permit the conclusion that in teratomas lentoids originate either from the retinal epithelium or from the ependymal cells of the brain ventricle.