Long-term efficacy and safety of cap-assisted endoscopic sclerotherapy with long injection needle for internal hemorrhoids

Figure 2 Endoscopic images of the same patient after undergoing one cap-assisted endoscopic sclerotherapy treatment. A: Conditions of internal hemorrhoids and rectal mucosa before surgery; B-D: Intra-operative injection; E and F: Post-operative period; G and H: Re-examination 1 year after treatment (second colonoscopy in 2017).