title: The cytology of carcinoma in situ and early invasive carcinoma of the esophagus.
mesh_terms: D000368:Aged; D002278:Carcinoma in Situ / Q000175:diagnosis* / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000473:pathology; D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D004938:Esophageal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D004947:Esophagus / Q000473:pathology; D006801:Humans; D008297:Male