Anorectal Evaluation

The anorectal evaluation consists of various tests done to assess and evaluate the anal and rectal region. Some of these tests are performed in the office and others at the endoscopy center.

Anoscopy visualizes the last inch and a half of the large intestine, namely the anal canal. Proctoscopy visualizes the rectum, which is approximately five to six inches of the terminal portion of the large intestine.  A flexible sigmoidoscope is approximately two feet long and is used to evaluate the left colon.

In addition to the above office-based procedures we also perform transanal ultrasound, which is used to evaluate patients with anal fistulae and to determine the anatomy and integrity of the anal sphincters in patients with fecal incontinence. It is also used to evaluate the size of rectal and anal tumors and assess the depth of penetration of rectal cancers through the wall of the rectum and to look for lymph gland enlargement in the fat surrounding the rectum.

Anal manometry involves the measurement of the pressures generated by the anal sphincters. It is used in evaluating patients with poor sphincter control and leakage of stool.