[Retropharyngo-esophageal tumors: an unusual pathology].
D004938:Esophageal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D010610:Pharyngeal Neoplasms / Q000175:diagnosis* / Q000601:surgery
I tumori retrofaringo-esofagei: una patologia inconsueta.