title: Prolonged 'in situ' stage in oesophageal carcinoma.
mesh_terms: D001706:Biopsy; D002278:Carcinoma in Situ / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D004938:Esophageal Neoplasms / Q000473:pathology*; D004947:Esophagus / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged