title: Sarcoma botryoides of the extrahepatic bile ducts. A light- and electron microscopic study of a case.
abstract: The clinical, light- and electron microscopic features of a sarcoma botryoides of the common bile duct of a 2 1/2-year-old boy are reported. Despite the absence of cross-striation under the light microscope, many tumour cells were found to contain abundant thin and thick filaments arranged in a sarcomere-like pattern at the electron-microscopic examination of originally paraffin-embedded material. Ultrastructural examination of embryonal rhabdomyosarcoma may be of value for a definite diagnosis also when only formalin-fixed and paraffin-embedded material is available.
authors.affiliation: Department of Pathology II, University of Göteborg, Sahlgren's Hospital, Göteborg, Sweden.
authors.forename: L G
authors.initials: LG
authors.lastname: Kindblom
authors.forename: K
authors.initials: K
authors.lastname: Dalberg
mesh_terms: D001650:Bile Duct Neoplasms / Q000628:therapy / Q000648:ultrastructure*; D017734:Bile Ducts, Extrahepatic / Q000648:ultrastructure*; D002675:Child, Preschool; D017809:Fatal Outcome; D005404:Fixatives; D005557:Formaldehyde; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D016612:Paraffin Embedding; D018233:Rhabdomyosarcoma, Embryonal / Q000628:therapy / Q000648:ultrastructure*; D016707:Tissue Fixation / Q000379:methods; D017211:Treatment Failure
chemical_list: D005404:Fixatives; D005557:Formaldehyde