Cold knife cone biopsy

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Cold cone biopsy

Cold cone removal

Female reproductive anatomy

A cold knife cone biopsy is a procedure to obtain a sample of abnormal tissue from the cervix for further examination. This procedure obtains a larger sample than that obtained by cervical punch biopsy or colposcopy-directed biopsy. An alternative procedure known as LEEP (loop electrocautery excisional procedure) uses electric current instead of a knife to remove the cervical tissue.

Cone biopsy; Biopsy - cone; Cervical conization

This is a surgical procedure, performed in the hospital under either intravenous sedation or general anesthesia. The purpose of this procedure is to diagnose and treat precancerous changes in the cervix.

A small cone-shaped sample of tissue is removed from the cervix and examined under a microscope for any signs of cancer. This biopsy may also serve as the treatment if all of the diseased tissue is removed.

As with any procedure performed under anesthesia, fasting for 6 to 8 hours is recommended. You must sign an informed consent form. The procedure is considered an outpatient (same day) procedure in which hospitalization is usually not necessary.

After the procedure, there may be some cramping or discomfort for a week or so. Avoid sexual intercourse, douching, and use of tampons for about 4 to 6 weeks. For 2 to 3 weeks after the procedure, you may have heavy, bloody, or a yellow-colored discharge.

The test is done when results of a cervical biopsy indicate precancerous cells in the area or cervical cancer. A cold knife biopsy may also be done if the cervical biopsy has not revealed the cause of an abnormal Pap smear.

Review Date: 05/23/2006
Reviewed By: Audra Robertson, MD, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, MA. Review provided by VeriMed Healthcare Network