Ependymoblastomaの電子顕微鏡的考察

Electron Microscopic Observations of Ependymoblastoma

Ⅰ．はじめに

　前回のependyniomaの電顕像にひきつづいて，ependymoblastomaについて電子顕微鏡的考察を加えた．

　ependymoblastomaはneural tubeから発生する悪性の分化度の低い中枢紳経系の腫瘍である．

The fine structure of an ependymoblastoma was examined and compared to nomal ependyma, ependymoma and to developing neural tube. As in the ependymoma, the tumor cells formed compact masses as well as rosettes and the blood vessel-associated pseudorosettes. In general, the cells appeared primitive but displayed well developed junctional devices in some areas as well as ciliary basal bodies. In many respects, the tumor cells resembled the cells forming the developing neural tube.