title: [Cytological diagnosis of malignant melanoma of the esophagus].
abstract: Malignant melanoma of the esophagus is an extremely rare neoplasm. We presented a case of this neoplasm diagnosed on a cytologic smear from a 84 year-old women. The smear was characterized by scattered dissociated cells with hyperchromatic irregular nuclei, prominent nucleoli and occasional cytoplasmic brown pigment. The immunohistochemical study revealed positivity for HMB-45 and S-100 protein.
authors.affiliation: Servicio de Anatomía Patológica, Hospital Central de Asturias (Hospital Covadonga), Oviedo, Asturias.
authors.forename: J M
authors.initials: JM
authors.lastname: Díaz Iglesias
authors.forename: M F
authors.initials: MF
authors.lastname: Fresno Forcelledo
authors.forename: C
authors.initials: C
authors.lastname: Alvarez de los Heros
authors.forename: S
authors.initials: S
authors.lastname: Alvarez Fonseca
authors.forename: C J
authors.initials: CJ
authors.lastname: Díaz Iglesias
authors.forename: M J
authors.initials: MJ
authors.lastname: Pérez del Río
authors.forename: A
authors.initials: A
authors.lastname: Herrero Zapatero
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D004938:Esophageal Neoplasms / Q000378:metabolism / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008545:Melanoma / Q000378:metabolism / Q000473:pathology*