Information To Contributors

Oral Pathology Biopsy Service Laboratory

In addition to seeing patients in clinic, our Board-certified oral and maxillofacial pathologists, Drs Adel Kauzman and Gisèle Mainville, offer microscopic diagnoses for tissue biopsies from the orofacial area. Histopathological analyses of tissue biopsies are done at the University of Montreal’s Faculty of Dentistry Oral Pathology laboratory.

Where do I send my biopsie?

Please send your tissue biopsy in a sealed 10% neutral buffered formalin container. It is very important to include pertinent clinical information as well as the patient’s information by completing the following Web form or the pdf form. If multiple biopsies are obtained for the same patient, place each specimen in a different formalin container, identified by the anatomic site.

For your convenience, we offer free biopsy submission kits. These contain formalin vials, labels, and pre-addressed envelopes.

Courrier Dentaire Express is available to pick up your biopsies and this at no cost to your clinic. The service is offered for the Greater Montreal area. In order to plan a pick up, please call 514 332-7000 and use client number 7473 for the invoicing. You can also use the (in French only).

If you are located outside the service territory of Courrier Dentaire Express, we strongly recommend the use of a courier service such as UPS, Purolator, or any other company to Send your biopsy to the following physical address:

Service de pathologie buccale
Faculté de médecine dentaire

Université de Montréal
Pavillon Roger-Gaudry – Local A-209
2900, boul. Édouard-Montpetit
Montréal (Québec) H3T 1J4

Direct immunofluorescence (DIF) studies for certain immune-mediated conditions (such as mucous membrane pemphigoid) require additional tissue submission in a special solution (Michel’s solution). We are happy to provide Michel’s solution upon your request.

To request free biopsy submission kits or vials of Michel’s solution, please contact us. We will expedite it to your practice as soon as possible. Please allow a few days for delivery.

How do I submit a case for histopathologic review and consultation?

We would be happy to review any problematic case upon your request. We understand that it may be challenging for general pathologists to interpret oral biopsy samples. If your clinical impression is inconsistent with a microscopic diagnosis rendered at a local hospital, it may be beneficial to the patient to request our review of the slides. Either the patient or the surgeon who performed the biopsy can request a review of the slides by contacting the initial general pathology laboratory. The slides and/or tissue blocks can be sent to the address above.


$140/case (up to two biopsies for the same patient at the same appointment and send at the same time to the laboratory).

A bill will be sent at the end of the month. The accepted payment methods are:

  1. Checks made to service de pathologie buccale CMB. Please send the check to the following address:
  2. Credit card. Send back the invoice with the credit card number and your signature to the following address:
    Service de pathologie buccale CMB
    Faculté de médecine dentaire
    Université de Montréal
    C.P. 6128, Succursale Centre-Ville
    Montréal (Québec) H3C 3J7
  3. Electronic transfer. Here is the procedure :
    • Login to your bank website (Scotia, RBC, TD, ect.)
    • Use this email address:
    • Create a secret question and send us an email with the response
    • In the comments or message, please mention the invoice number.

Processing delays

Following the reception of the tissue sample, we will do our best to provide you and your patient with a diagnosis within 10 business days.

Sending of the report

The histopathologic reports are sent by email. The email address used to submit the biopsies will be used. You will then receive a link from us that will lead to a document protected by an access code. The access code will be included in the email. We strongly recommend using Google Chrome or Firefox browser to open, read or print the reports. We recommend that you monitor your junk email folder for the first few communications. Only the individuals with the password will be able to access the report.

The invoice will be sent to the main email of your clinic.

Important links

Oral pathology biopsy service’s website: Pathocmb

Biopsy submission form: electronic submission form or printable format (pdf)

How to reach us

Adel Kauzman

Gisèle Mainville
514-343-6111 poste 37381

Danièle Drouin
514 831-1565



Thank you for allowing us to participate in the care of your patients.