Current status of esophagoscopy.
D000230:Adenocarcinoma / Q000175:diagnosis; D002057:Burns, Chemical; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D004106:Dilatation; D004931:Esophageal Achalasia / Q000175:diagnosis; D004935:Esophageal Diseases / Q000175:diagnosis*; D004938:Esophageal Neoplasms / Q000175:diagnosis; D004940:Esophageal Stenosis / Q000628:therapy; D004945:Esophagoscopy / Q000379:methods; D004947:Esophagus / Q000293:injuries; D005547:Foreign Bodies; D005764:Gastroesophageal Reflux / Q000150:complications / Q000175:diagnosis; D006551:Hernia, Hiatal / Q000175:diagnosis; D006801:Humans