title: [Ultrastructural observations on astrocytoma].
abstract: The E.M. findings of 5 brain astrocytomas are described in this paper. Ultrastructural features can point out the glial origin of these tumours, in opposition to Zülch's mesenchymal assumption.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001254:Astrocytoma / Q000648:ultrastructure*; D001932:Brain Neoplasms / Q000648:ultrastructure*; D002540:Cerebral Cortex / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D003337:Corpus Callosum / Q000473:pathology; D005260:Female; D005909:Glioblastoma / Q000648:ultrastructure; D006624:Hippocampus / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009457:Neuroglia / Q000473:pathology*
vernacular_title: Osservazioni ultrastrutturali sugli astrocitomi.