Information Regarding a Biopsy

Definition of a Biopsy

A biopsy is defined as the removal of a growth or a piece of tissue from the body that is then sent to a laboratory for examination under a microscope. 

Purpose of a Biopsy

A biopsy is necessary to diagnose the nature of a lesion, and to formulate a treatment plan based on the diagnosis. Simply put, we take it out, look at it under the microscope, find out was it is, and then decide what to do about it!

Indications for Biopsy

  • a growth that has been present in the mouth for more than two weeks, and has not responded to non-surgical treatment; 
  • a growth that has undergone slow enlargement, rapid growth, or interferes with normal function;
  • a growth that has an unusual red or white colour:
  • a non-healing ulcer; and 
  • a growth that is painful and may be causing numbness or altered sensation.

Types of Biopsy

  • Incisional Biopsy: a part or portion of the abnormal tissue is removed, and a part is left in your month; or,
  • Excisional Biopsy: the entire area of abnormal tissue is removed. 

Preparation for your Biopsy Procedure:

The typical biopsy is a minor procedure performed under local anaesthesia for which there is no special preparation. In cases where a more extensive surgery is anticipated, it may be more comfortable for you to have your biopsy done while under a sedative anaesthetic. If you are to be sedated, you must remember to have nothing to eat or drink, including gum, candy or water, from the midnight prior to your surgery appointment.  You must come to the office accompanied by an adult able to drive you home following your procedure, and who may remain with you until you have fully recovered from the sedative effects of the medications.   

Testing/Examination of the Biopsied Tissue

The tissue specimen is sent to the Biopsy Service, at the Department of Oral Pathology, Faculty of Dentistry, University of Toronto, for examination by an Oral Pathologist, a dental specialist with expertise in the examination of tissues under the microscope.  After examination of the specimen, the Oral Pathologist sends a detailed report to Dr. Eidinger’s office.  After receipt of the report, you will contacted directly to review these results, either by phone or in person.  It may take from 2-4 weeks to receive the biopsy report from the Biopsy Service.  

Fees for the Biopsy Service

Dr. Eidinger collects a processing fee from each patient for the use of this off-site laboratory.  These funds are then sent directly to the Biopsy Service, on your behalf, after your specimen has been processed. 

Recovering From Your Biopsy

Recovery from a biopsy is usually uneventful. You may experience some pain or swelling, and some minor bleeding for several days following surgery.  A soft diet is recommended, while avoiding drinking with straws, temperature hot, acidic, or spicy foods.  If they have not dissolved on their own, your stitches may require removal at your follow-up appointment, 1-2 weeks after your procedure.