Proctoscopy is a procedure used to diagnose problems with your rectum and anus. The rectum is the end of your large intestine (colon). The anus is the opening of the rectum. The device used to perform ...

PNEUMATOSIS cystoides intestinalis is a rare condition characterized by the presence of gas-filled cysts involving the intestinal wall and its attachments. It is known under a variety of names: gas ...

Doctors use various tests to diagnose anal cancer. A colonoscopy may help detect abnormalities in the anus during a routine screening, but doctors do not use it to detect suspected anal cancer. Anal ...