Related Experiment Video
Updated: Jul 3, 2026
Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
[Analysis of 643 colorectal cancer patients diagnosed by total colonoscopy]
Hua-Xing Wu1, Li Han, Li-Jie Song
1Department of Endoscopy, Cancer Hospital, Harbin Medical University, Harbin 150081, China. wangguonian609cn@yahoo.com.cn
Objective:
To evaluate the value of colonoscopy in the diagnosis of colorectal cancer.
Methods:
The data of colonoscopy in 1751 patients from May 2003 to June 2006 were retrospectively analyzed.
Results:
Of these 1751 colonoscopies, 643 colorectal cancers (36.7%) were detected. The age of most patients was between 40 and 60 years, and hematochezia was the major syndrome for these patients. 351 patients (54.6%) had lump type, 211 (32.8%) ulcerous type, 81 (12.6%) ulcerous infiltration type. 511 colorectal cancers (79.5%) originated from the rectum or sigmoid colon. Simultaneous double primary carcinoma was found in 15 cases (2.3%). Multiple primary cancer was observed in 2 cases. Furthermore 254 colorectal cancers (39.5%) were found to have concurrent colorectal polyps.
Conclusion:
Colonoscopy of total colon and rectum is very helpful in diagnosis of colorectal cancer, which can reduce the rate of misdiagnosis and improve the survival.
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