To investigate the relationship between dysplasia and carcinoma of the esophagus, 159 cases of esophageal carcinoma without any preoperative treatment were reviewed retrospectively. There were 75 dysplastic lesions in 32 cases (20.1%). The incidence of co-existence of dysplastic lesions was 0, 58.3, 31.3, 20.8 and 11.4% in intra-epithelial, mucosal and… (More)
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