Anal biopsy
Anal biopsy

Anoscopy

Definition:
An anoscopy is a procedure that enables a physician to view the anus, anal canal, and lower rectum using a speculum.

How the test is performed:

First, the health care provider performs a digital rectal exam by inserting a lubricated, gloved finger into the rectum to determine if anything will block the insertion of the scope.

He or she then inserts a lubricated metal or plastic anoscope a few inches into the rectum. This enlarges the rectum to allow the health care provider to view the entire anal canal using a light. A specimen for biopsy can be taken if needed. As the scope is slowly removed, the lining of the anal canal is carefully inspected.



How to prepare for the test:

You will be asked to defecate to clear your rectum of stool before the procedure. A laxative, enema, or other preparation may be administered to help clear your rectum.

Infants and children:
A child's age and previous experience determine which steps are appropriate to prepare a child for this procedure. For specific recommendations, refer to the following topics as they correspond to your child's age:



How the test will feel:

There will be some pressure during the procedure, and you may feel the need to defecate. If biopsies are taken, you may feel a pinch.



Why the test is performed:

This test may be used to determine whether you have hemorrhoids, anal polyps, tumors, inflammation, fissures, or infection.



Normal Values:

The anal canal appears normal in size, color, and tone. There is no evidence of bleeding, polyps, hemorrhoids, or other abnormal tissue.



What abnormal results mean:

Abnormal results may indicate hemorrhoids, an abscess, inflammation, infection, fissures, tumors, or polyps (benign or malignant).



What the risks are:

There are minimal risks for simple anoscopy. If a biopsy is needed, there is a limited risk of bleeding and mild pain.




The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2004 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.