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Colposcopy - directed biopsy
Alternative namesBiopsy - colposcopy-directed
DefinitionA colposcopy-directed biopsy is performed using a colposcope to aid in the viewing of the surface of the cervix . It also helps to identify areas on the surface which show tissue abnormalities. A colposcope is a low-power microscope used to magnify the surface of the cervix 10 to 40 times its normal size (see also " Cervical biopsy ").
How the test is performed
As in a regular pelvic examination, you will be asked to lie on your back with your feet in the stirrups. A speculum (an instrument used to hold open the birth canal in order to view and examine the cervix ) will be inserted into your vagina and opened slightly.
The cervix is then swabbed with a chemical solution (acetic acid) to remove the mucus that covers the surface and help highlight abnormal areas. The colposcope is then positioned at the opening of the vagina, and the area is thoroughly examined. Photographs may be taken.
How to prepare for the testThere is no special preparation. The procedure may be more comfortable if you empty your bladder and bowel beforehand. You should not douche or have sexual intercourse for 24 hours before the exam.
How the test will feelA colposcopy is painless. Some women feel a slight stinging sensation caused by the vinegar solution. The biopsy may feel like a pinch each time a tissue sample is taken and may have some cramping with it.
Any pain or cramping occurring during the biopsy may be helped by relaxing and taking a few slow deep breaths. Some cramping may occur after the biopsy. Many women have a tendency to hold their breath during pelvic procedures in anticipation of pain. Making an effort to concentrate on slow, regular breathing will help you relax and reduce or eliminate some pain.
Why the test is performedThis is usually performed after a positive pap smear to help identify the abnormality.
Normal ValuesA smooth, pink surface of the cervix is normal. A biopsy is only performed when abnormal tissues are seen or suspected because of abnormal pap smear results.
What abnormal results meanAbnormalities detected include cervical warts ( human papilloma virus ), precancerous tissue changes, cervical intraepithelial neoplasia (tumor) , or invasive carcinoma ( cancer ). The colposcopy may be used to keep track of precancerous abnormalities and look for recurrent abnormalities after treatment.
Abnormal findings during a colposcopy include abnormal patterns in the blood vessels, whitish patches on the cervix , and areas that are inflamed, eroded, or atrophic (tissue wasting away). Any of these abnormalities may indicate cancerous changes.
Additional conditions under which the test may be performed:
What the risks are
After the biopsy , there may be some bleeding for up to a week. Avoid sexual intercourse, douching, and using tampons, for 2 weeks to allow the biopsy area to heal.
If bleeding is unusually heavy or lasts for longer than 2 weeks, or if you notice any signs of infection (fever, foul odor, or discharge), your health care provider should be contacted.
Special considerationsWhen the colposcopic examination or biopsy does not show why the pap smear was abnormal, a more extensive biopsy may be suggested (see Cold knife cone biopsy ).
Update Date: 2/5/2002Peter Chen, M.D., Department of Obstetrics & Gynecology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
Last updated: Tue, 06 Jan 2009 00:20:03 GMT