Printer Friendly VersionEmail A FriendAdd ThisIncrease Text SizeDecrease Text Size

Skin lesion biopsy

 

Definition

A skin lesion biopsy is the removal of a piece of skin to diagnose or rule out an illness.

Alternative Names

Punch biopsy; Shave biopsy; Skin biopsy; Biopsy - skin

How the test is performed

There are several ways to do a skin biopsy. Most procedures can be easily done in outpatient medical offices or your doctor's office.

Which procedure you have depends on several factors, including the location, size, and type of lesion. You will receive some type of numbing medicine (anesthetic) before any type of skin biopsy.

Types of skin biopsies include:

  • Shave biopsy
  • Punch biopsy
  • Excisional biopsy

The shave biopsy is the least invasive of all three techniques. Your doctor will remove the outermost layers of skin. You will not need stitches.

Punch biopsies are most often used for deeper skin lesions. Your doctor removes a small round piece of skin (usually the size of a pencil eraser) using a sharp, hollow instrument. If a large sample is taken, the area may be closed with stitches.

An excisional biopsy is done to remove the entire lesion. A numbing medicine is injected into the area. Then the entire lump, spot, or sore is removed, going as deep as necessary to get the entire area. The area is closed with stitches. Pressure is applied to the area to stop any bleeding. If a large area is biopsied, a skin graft or flap of normal skin may be used to replace the skin that was removed.

How to prepare for the test

Tell your health care provider:

  • About the medications you are taking (including vitamins and supplements, herbal remedies, and over-the-counter preparations)
  • If you have any allergies
  • If you have bleeding problems
  • If you are pregnant
How the test will feel

There is a brief prick and sting as the anesthetic is injected. Afterward, the area may be tender.

Why the test is performed

Your doctor may order a skin biopsy if you have signs or symptoms of skin cancer, benign growths, chronic bacterial and fungal skin infections, or other skin conditions.

Normal Values

Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

What abnormal results mean

The test may reveal skin cancers or noncancerous (benign) conditions. Bacteria and fungi can be identified. The test may also reveal some inflammatory diseases of the skin. Once the diagnosis is confirmed with the biopsy, a treatment plan is usually started.

What the risks are

Risks may include:

You will bleed slightly during the procedure. Tell your doctor if you have a history of bleeding problems.

Special considerations

Fluid-filled lesions may be examined by skin lesion aspiration instead of skin lesion biopsy.


Review Date: 8/2/2009
Reviewed By: Michael Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional 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. © 1997- 2009 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
MAIMONIDES
MEDICAL CENTER


Home Page
Why Choose Us
Donations
Website Terms of Use
PATIENT
INFORMATION


Visitor & Patient Info
Patient Portal
We Speak Your Language
Patient Privacy
Contact Us
KEY
INFORMATION


Find a Physician
Medical Services
Maimonides In the News
Directions & Parking
FOR HEALTH
PROFESSIONALS


Medical Education
Career Opportunities
Nurses & Physicians
Staff Intranet Access
Maimonides Medical Center    |    4802 Tenth Avenue    |    Brooklyn, NY 11219    |    718.283.6000    |