Anal neoplasm in colonoscopy: What endoscopists need to know

Figure 7 Bar chart. A: Findings of the video anoscopies. The females (9914 cases, 58.89%) and male (6922 cases, 41.11%) groups were divided by sex and classified into 10-year age groups; B: Findings of 17 neoplasms. 3 cases of rare neoplasia (0.02%), 5 cases of adenocarcinoma (0.03%), and 9 cases of squamous cell carcinoma (0.05%); C: Findings of neoplasms in females and males classified by 10-year age groups; D: Findings of 93 polyps; E: Distribution of patients with suspected sexually transmitted infections according to sex and age; F: Distribution of patients with human papilloma virus lesions according to sex and age; G: Distribution of patients with perianal Crohn’s disease according to sex and age; H: Findings of inflammatory diseases. Perianal Crohn’s disease, perianal fistula, anal stenosis, and anal fissure; I: Distribution of 10585 patients with hemorrhoidal disease according to sex and age; J: Findings and number of cases of hemorrhoidal disease. SCC: Squamous cell carcinoma; STI: Sexually transmitted infection; HPV: Human papilloma virus.