本文对我科近年来关于大肠肿瘤病变的细胞学诊断工作作了概述和总结。在内窥镜直视下对209例病变取材作活检和涂片细胞学诊断,涂片诊断的符合率、不符合率、假阴性率和假阳性率分别是81.12％、13.87％、 This article summarizes and summarizes the cytological diagnosis of colorectal neoplasms in our department in recent years. Biopsy and smear cytology were performed on 209 lesions under endoscopy. The coincidence rate, nonconformity rate, false negative rate, and false positive rate of the smear diagnosis were 81.12% and 13.87%, respectively.