title: [Granular cell tumor of the esophagus: report of two cases with endoscopic removal and immunohistochemistry].
abstract: The authors present two cases of granular cell tumor affecting the esophagus. The patients, one male and one female, were 48 and 52 years old. Although both tumors were small (1 and 1.5 cm in diameter), they produced local symptoms. Endoscopical removal was done in both patients and histological examination revealed granular cell tumors. Immunohistochemistry showed positivity for S 100 protein in both cases further corroborating to a Schwann cell origin for these legions.
authors.affiliation: Serviço de Anatomia Patológica do Hospital Nossa Senhora das Graças e do Hospital de Clíncas da UFPR.
authors.forename: L F
authors.initials: LF
authors.lastname: Torres
authors.forename: S
authors.initials: S
authors.lastname: Bizinelli
authors.forename: B
authors.initials: B
authors.lastname: Werner
authors.forename: J S
authors.initials: JS
authors.lastname: Reis Filho
authors.forename: J E
authors.initials: JE
authors.lastname: Telles
mesh_terms: D016145:Endoscopy, Digestive System; D004938:Esophageal Neoplasms / Q000473:pathology*; D005260:Female; D016586:Granular Cell Tumor / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged