title: Osteosarcoma of the esophagus.
abstract: The case of a 70-year-old man who underwent esophagectomy for a large polypoid sarcoma is described. Detailed examination of the surgical specimen established a diagnosis of osteosarcoma. Although osteosarcomas of the esophagus have been described in dogs, such tumors in humans do not appear to have been previously reported.
mesh_terms: D000368:Aged; D004938:Esophageal Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D012516:Osteosarcoma / Q000473:pathology*