Collage:Anus seen with the colonoscope in an inverted position
Collage:Linea dentata (Linea anorectalis)
Collage:Anal fibromas
Collage:Haemorrhoids
Collage:Mucosal inflammation caused by a rectal prolapse
Collage: Perianal tubular adenoma seen with the colonoscope in an inverted position
Collage: Perianal tubulovillous adenoma seen with the colonoscope in an inverted position