Extensive dysplasia and carcinoma in situ of esophageal epithelium.
D000328:Adult; D002281:Carcinoma, Basosquamous / Q000473:pathology*; D003680:Deglutition Disorders / Q000209:etiology; D004938:Esophageal Neoplasms / Q000473:pathology*; D004945:Esophagoscopy; D004947:Esophagus / Q000601:surgery; D006801:Humans; D008297:Male