To investigate the endoscopic features of anal and anorectal tumors specifically missed during colonoscopy and provide insights for clinicians.
Key Findings:
Approximately 12% of anal and anorectal tumors were missed during endoscopic assessments, highlighting a critical gap in detection.
Inadequate visualization and low rates of retroflexion examination significantly contributed to missed diagnoses.
Endoscopists' unfamiliarity with tumor features and false-negative biopsy results were identified as major contributing factors.
Interpretation:
Standardizing endoscopic procedures and enhancing endoscopists' knowledge of anal and anorectal tumors through targeted training may significantly reduce missed diagnoses.
Limitations:
The retrospective design may introduce selection bias, potentially affecting the reliability of the findings.
The study's limitation to a single institution may restrict the generalizability of the results to broader clinical settings.
Conclusion:
Improving detection strategies and comprehensive training for endoscopists is essential to reduce the incidence of missed anal and anorectal tumors, ultimately enhancing patient care.
