Missed diagnosis analysis of colorectal cancer on routine abdominopelvic CT
10.3969/j.issn.1002-1671.2025.11.012
- VernacularTitle:常规腹盆腔CT检查中结直肠癌漏诊分析
- Author:
Jing DU
1
;
Lixue XU
1
;
Xuejing LIU
1
;
Zhenghan YANG
1
Author Information
1. 首都医科大学附属北京友谊医院放射科,北京 100050
- Publication Type:Journal Article
- Keywords:
colorectal cancer;
computed tomography;
missed diagnosis
- From:
Journal of Practical Radiology
2025;41(11):1816-1818,1851
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the imaging features and causes of missed diagnosis of colorectal cancer(CRC)in routine abdomi-nopelvic CT examinations.Methods A retrospective analysis was conducted on the clinical and imaging data of 38 patients with CRC which were initially overlooked in routine abdominopelvic CT examinations.The imaging features and causes of missed diagnosis were analyzed.Results Distribution of lesions:ten cases(26.3％)located in the caecum-ascending colon,6 cases(15.8％)located in the transverse colon,1 case(2.6％)located in the descending colon,18 cases(47.4％)located in the sigmoid colon and 3 cases(7.9％)located in the rectum.The mean length of diseased bowel was(2.8±1.3)cm.Pericolic fat stranding was found in 16 cases,locore-gional adenopathy was found in 19 cases,and focal pericolic neovascularity was found in 12 cases.The four reasons for missed diagno-sis included:(1)comprehensive assessment of colorectal conditions was not routinely performed;(2)small lesion size;(3)unfamiliar with the subtle secondary signs of CRC;(4)image-related reasons.Conclusion Radiologists should conduct conventional and com-prehensive assessment of the colorectum in routine abdominopelvic CT examinations.With the accumulation of diagnostic experience,it will be beneficial to reduce the missed diagnosis rate of CRC.
