Missed anal and anorectal tumors during endoscopic examinations: a ten-year retrospective study

Key Points

• Evaluate the frequency of missed diagnoses of anal and anorectal tumors during endoscopic examinations.
• Conducted a ten-year retrospective review of endoscopic examinations.
• Analyzed cases of missed anal and anorectal tumors.
• Examined the endoscopic features related to these tumors.
• High proportion of missed anal and anorectal tumors observed.
• Need for comprehensive endoscopic observation highlighted.
• Importance of recognizing endoscopic features of anal tumors emphasized.