If you have been affected by lower rectal cancer I believe this site would be a good starting point to learn more.
myweb.tiscali.co.uk/theblac...
It covers Help & information on rectal polyp bowel cancer requiring an AP resection or AbdominoPerineal Resection (APR) or AbdominoPerineal Excision Resection (APER) that leaves you with a colostomy.
Hope it helps someone somewhere.