Hong Xiao*, Xingguo Fang, Ya  Yuan


Department of Digestive System, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, 553000, Guizhou Province, China


Objective: Colorectal cancer is one of the ten major cancers that seriously endanger human health. The onset and development of colorectal cancer are relatively slow, so it is difficult to find. Therefore, the diagnosis of colorectal cancer is very important. This paper proposed the clinical diagnostic value of magnifying endoscopy and a solid microscope to diagnose early colorectal cancer. 

Methods: This paper first introduces how to observe the early symptoms of colorectal cancer with magnifying endoscopy and a solid microscope and analyses the characteristics of colon polyps, such as the type of tube opening, for the detection of early colorectal cancer. In addition, endoscopic mucosal staining technology was used with magnifying endoscopy and a solid microscope to study the type of catheter opening and the results were compared with the pathological diagnosis. 

Results: This study found that the detection rate using high-grade intraepithelial neoplasia (33.7%) was significantly higher than that with random sampling (6.1%). The diagnostic coincidence rate of solid microscope and magnifying endoscopy for polyps was 89%, that of tubular adenoma was 92%, and that of villous adenoma and advanced carcinoma was 100%. 

Conclusion: The opening of the large intestine gland duct is very important for judging tumour, non-tumour and early colorectal cancer. Therefore, the accuracy of diagnosis can be effectively improved by using a solid microscope to improve the examination of magnifying endoscopy and correct the existing errors and blind spots.


Magnifying endoscopy, solid microscope, early colorectal cancer, clinical diagnosis.