title: Malignant fibrous histiocytoma of the esophagus. Report of a case with cytologic, immunohistologic and ultrastructural studies.
abstract: A 65-year-old man presented with an esophageal polyp that proved to be malignant pleomorphic fibrous histiocytoma, extremely rare at that location. Diagnosis of the abrasion cytology specimen was confirmed by immunohistochemical and electron microscopic methods. Differential diagnostic problems of pleomorphic soft tissue tumors and epithelial tumors mimicking them are discussed.
authors.affiliation: Department of Cytopathology, National Institute of Oncology, Budapest, Hungary.
authors.forename: Z
authors.initials: Z
authors.lastname: Sápi
authors.forename: I
authors.initials: I
authors.lastname: Papp
authors.forename: M
authors.initials: M
authors.lastname: Bodó
mesh_terms: D000368:Aged; D004938:Esophageal Neoplasms / Q000276:immunology / Q000473:pathology* / Q000648:ultrastructure; D018219:Histiocytoma, Benign Fibrous / Q000276:immunology / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male