The fine structure of ependymoblastoma.

摘要: An ependymoblastoma in the vermis of cerebellum a three-year-old girl has been examined light and electron microscopes. The densely packed cells were arranged masses, cords around blood vessels rare rosettes clear lumens. In microscope, are characterized by poorly differentiated cytology except for presence rather prominent junctional devices and, some rosette formations, basal bodies. From morphological viewpoint, tumor appear remarkably similar to which line normal, embryonic neural tube.