anal condyloma
anal dysplasia
anal fissure fistulectomy
anal pap smear
anal polyp
appendiceal carcinoid
appendicostomy
colostomy revision
endorectal advancement flap (eraf)
hemorrhoidopexy stapling
incision of anal septum
inflammatory bowel disease
minimally invasive colon resection
minimally invasive rectal resection
ostomy
paget's disease of the perianal skin
perineal hernia repair
pilonidal disease
proctoplasty for stenosis
refashioning of colostomy
sigmoidoscopy
sphincterotomy
stoma complications
subtotal colectomy
ulcerative colitis