title: Diagnosis of a peripheral neuroectodermal tumour by fine needle aspiration.
abstract: One case of malignant peripheral neuroectodermal tumour successfully diagnosed by cytology is presented. Although a Papanicolaou stained smear could not lead to a diagnosis more specific than a malignant small cell tumour, ancillary analytic methods performed on the cytologic material including immunocytochemistry and electron microscopy yielded the correct diagnosis of peripheral neuroectodermal tumour. This case demonstrates that a precise categorization of small round cell tumours may be achieved by cytology as long as some material is kept for immunocytochemical and ultrastructural studies.
authors.affiliation: Department of Pathology, Mount Sinai Hospital, Toronto, Ontario, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Auger
authors.forename: Y C
authors.initials: YC
authors.lastname: Bedard
authors.forename: S
authors.initials: S
authors.lastname: Keating
mesh_terms: D000293:Adolescent; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D014408:Biomarkers, Tumor / Q000032:analysis; D001707:Biopsy, Needle; D003131:Combined Modality Therapy; D006428:Hemipelvectomy; D006801:Humans; D007124:Immunoenzyme Techniques; D007264:Inguinal Canal; D008297:Male; D009363:Neoplasm Proteins / Q000032:analysis; D009373:Neoplasms, Germ Cell and Embryonal / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology / Q000601:surgery; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology / Q000601:surgery
chemical_list: D014408:Biomarkers, Tumor; D009363:Neoplasm Proteins