operative surgery of the colon rectum and anus Resection (LAR) Removal of rectal tumor with preservation of anal sphincter Anastomosis between remaining colon and anus Abdominoperineal Resection (APR) For low rectal cancers involving sphincters Creation of permanent L Leilani Gutmann-Luettgen May 18, 2026
anus surgical treatment and pathology Laser therapies for anal warts and hemorrhoids. Stem cell therapy for sphincter reconstruction. Biological meshes and tissue engineering for complex fistulas. Research and Clinical Trials Ongoing studies aim to improve the understanding of anal pathologies, optimiz R Ryder Pfeffer Sep 16, 2025
