title: Ultrastructural evidence of ependymal differentiation in a genetically proven atypical teratoid/rhabdoid tumor.
abstract: BACKGROUND
  We describe a case of genetically proven atypical teratoid/rhabdoid tumor (ATRT), showing ultrastructural evidence of ependymal differentiation. Such differentiation has not been reported so far in ATRT.
  
  
  CONCLUSIONS
  This finding supports the concept that ATRTs as the majority of central nervous system embryonal tumors may derive from an immature and pluripotent neuroectodermal cell capable of differentiating along multiple lineages.
authors: Department of Experimental Medicine, University La Sapienza, Rome, Italy.
authors: Manila
authors: M
authors: Antonelli
authors: Giovanna
authors: G
authors: Cenacchi
authors: Piergiorgio
authors: P
authors: Modena
authors: Isabella
authors: I
authors: Morra
authors: Marco
authors: M
authors: Forni
authors: Felice
authors: F
authors: Giangaspero
mesh_terms: D002551:Cerebral Ventricle Neoplasms / Q000235:genetics / Q000601:surgery / Q000648:ultrastructure*; D002648:Child; D003582:Cytogenetics; D004805:Ependyma / Q000601:surgery / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D009154:Mutation; D018335:Rhabdoid Tumor / Q000235:genetics / Q000601:surgery / Q000648:ultrastructure*; D013724:Teratoma / Q000235:genetics / Q000601:surgery / Q000648:ultrastructure*