Seul Kee KimMin Young JeongTae Young JungHeoung Keun KangWoong Yoon
Dysembryoplastic neuroepithelial tumors (DNETs) arise mostly in the supratentorial cerebral cortex. A very rare case of intraventricular DNET with diffuse ependymal involvement, which causes spinal drop metastasis, is presented.
A case of evolvement of fibrosarcoma from a supratentorial arachnoid cyst (verified in surgery five years before) is presented, with brief comments on the embryonic origin of the tissues involved.