title: Fine-needle aspiration cytology of "proximal-type" epithelioid sarcoma.
abstract: The cytologic and immunocytologic findings in a case of recurrent "proximal-type" epithelioid sarcoma (ES) of the vulva are presented. This is a recently described neoplasm that differs clinically and morphologically from conventional ES. Cytologic smears showed a dissociated population of large, atypical neoplastic cells with bi- and multinucleated cells, abundant cytoplasm, and rhabdoid-like morphology. Due to its different clinical management it must be differentiated from metastatic carcinoma and melanoma. From a practical perspective, its differentiation from other epithelial-like sarcomas is less important. In conclusion the cytopathologic findings of "proximal-type" ES show a good correlation with histopathology, permitting the diagnosis of recurrences and metastases. When accompanied by adequate clinical information and ancillary studies, a specific preoperative recognition seems possible.
authors.affiliation: Department of Pathology, University Hospital, Guadalajara, Spain.
authors.forename: P
authors.initials: P
authors.lastname: González-Peramato
authors.forename: J A
authors.initials: JA
authors.lastname: Jiménez-Heffernan
authors.forename: J
authors.initials: J
authors.lastname: Cuevas
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D005260:Female; D006801:Humans; D012509:Sarcoma / Q000473:pathology*; D014846:Vulvar Neoplasms / Q000473:pathology*