title: Aspiration and exfoliative cytology, including ultrastructure, of a malignant granular-cell tumor.
abstract: The cytopathologic features of a malignant granular cell tumor in both exfoliative and aspiration cytopreparations included isolated cells with low nuclear-cytoplasmic ratios and abundant, diffusely granular cytoplasm. Transmission electron microscopy revealed the diagnostic secondary lysosomes in the neoplastic cells.
authors.forename: K R
authors.initials: KR
authors.lastname: Geisinger
authors.forename: E H
authors.initials: EH
authors.lastname: Kawamoto
authors.forename: R B
authors.initials: RB
authors.lastname: Marshall
authors.forename: E T
authors.initials: ET
authors.lastname: Ahl
authors.forename: M R
authors.initials: MR
authors.lastname: Cooper
mesh_terms: D000008:Abdominal Neoplasms / Q000473:pathology*; D000368:Aged; D001707:Biopsy, Needle; D003584:Cytological Techniques; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D007120:Immunochemistry; D008854:Microscopy, Electron; D009135:Muscular Diseases / Q000473:pathology*; D009364:Neoplasm Recurrence, Local; D009369:Neoplasms; D009379:Neoplasms, Muscle Tissue / Q000473:pathology*