title: Subependymal giant-cell astrocytoma. Case report with ultrastructural study.
abstract: A 13-year-old boy presented with an obstructive left lateral intraventricular mass. Pathological examination revealed a subependymal giant-cell astrocytoma. Further clinical investigation confirmed the diagnosis of tuberous sclerosis. Ultrastructural examination confirmed previously reported features of this tumor. Tumor cells containing large dense granulated bodies and dense-core vesicles, not previously described in this tumor, were identified.
mesh_terms: D000293:Adolescent; D001254:Astrocytoma / Q000150:complications / Q000473:pathology* / Q000648:ultrastructure; D002551:Cerebral Ventricle Neoplasms / Q000150:complications / Q000473:pathology* / Q000648:ultrastructure; D002648:Child; D006801:Humans; D008297:Male; D014402:Tuberous Sclerosis / Q000150:complications / Q000175:diagnosis / Q000235:genetics*