title: A rare case of extraskeletal osteosarcoma of the esophagus: an example of difficult diagnosis.
authors.affiliation: Department of Pathology and Anatomy, Santo Spirito Hospital, Casale Monferrato, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Erra
authors.forename: D
authors.initials: D
authors.lastname: Costamagna
authors.forename: R
authors.initials: R
authors.lastname: Durando
mesh_terms: D000368:Aged; D002471:Cell Transformation, Neoplastic; D003680:Deglutition Disorders / Q000209:etiology; D018450:Disease Progression; D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D004945:Esophagoscopy; D006801:Humans; D008297:Male; D009367:Neoplasm Staging; D012516:Osteosarcoma / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D010166:Palliative Care; D011379:Prognosis; D035583:Rare Diseases