title: [Ultrastructural characteristics of soft tissue rhabdomyosarcomas].
abstract: Seven rhabdomyosarcomas of human soft tissues were studied electron microscopically. Certain ultrastructural features characteristic of tumour rhabdomyoblasts were revealed: atypical fibrillar apparatus, spatially uneven process of myofibrillogenesis, disturbed cyto- and histotypical differentiation ratio and others. These features may be used for electron microscopic diagnosis of rhabdomyosarcomas among soft tissue tumours of low differentiation.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002471:Cell Transformation, Neoplastic / Q000648:ultrastructure; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008854:Microscopy, Electron; D008875:Middle Aged; D009373:Neoplasms, Germ Cell and Embryonal / Q000648:ultrastructure; D012208:Rhabdomyosarcoma / Q000175:diagnosis / Q000648:ultrastructure*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000648:ultrastructure*
vernacular_title: Ul'trastrukturnye osobennosti rabdomiosarkom miagkikh tkaneĭ.