[Morphologic analysis of neuroectodermal elements in mature ovarian teratomas].
Morphologic analysis of neuroectodermal glial tissue was studied in 43 cases of mature cystic teratomas of the ovary. During investigations it was stated that the borders of glial tissue within teratoma, in relation to surrounding mesenchymal structures, are different. Sometimes the glial nests revealed invasive growth in spite of their histologic maturity, while others had insular, polycyclic shapes and sharp borders. These first nests, according to opinion of the author, seem to be potential source of peritoneal infiltration in the cases of peritoneal gliomatosis. Some histologic structures, observed by the author, suggest that during the differentiation of teratoma of the ovary there are morphogenetic movements similar to those known from embryo- or histogenesis, like abortive migration of glial cells to form abortive cerebral cortex.