直肠癌误诊４０例分析周传瑜直肠癌误诊率高达５０％～７０％．现将我院４年来收治的、经病理确诊的４０例直肠癌的误诊原因分析如下．１　临床资料１．１　性别与年龄：男２２例，女１８例．２９岁以下４例，３０～３９岁８例，４０～４９岁８例，５０～５９岁１１例，６... Misdiagnosis of rectal cancer 40 cases analysis Zhou Chuanyu Rectal cancer misdiagnosis rate as high as 50% to 70%. 4. The reasons for misdiagnosis of 40 cases of rectal cancer diagnosed by pathology in our hospital for the past 4 years are analyzed as follows. 1 Clinical data 1.1 Sex and age: 22 males and 18 females. 4 patients below the age of 29, 8 patients between the ages of 30 and 39, 8 patients between the ages of 40 and 49, 11 patients between the ages of 50 and 59, 6...