IDEXX Reference Laboratories

IDEXX pathology services. Make confident decisions, faster.

From state-of-the-art diagnostics, to the world's largest global network of pathologists, IDEXX offers comprehensive support to help you make well-informed, timely decisions for your pathology cases.

  • The most advanced menu of tests.
    Easy ordering of diagnostic tests for even the most complex cases.
  • Cutting-edge digital technology.
    Cutting-edge technology to route cases to clinical and anatomic pathologists, enabling fast results and collaboration among IDEXX specialists around the world.
  • Expert support tailored for you.
    IDEXX has the largest global network of pathologists, offering their expertise to support you in making clinical decisions.
  • Comprehensive educational resources and tools.
    The IDEXX Learning Center provides an extensive collection of training courses, webinars, and instruction videos to help your staff handle pathology cases with confidence.


Learn more about our pathology solutions.

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Our expertise is all yours.

Pathology can be complex. That's why our global network of pathologists is here to support you at every turn.

From local experts to specialists across the globe, the IDEXX pathologist network offers one-on-one guidance for the duration of your case—no matter how complex it gets. With decades of experience in countless subspecialties, that’s expertise you can count on.

See our team of pathologists serving North America

Get review criteria details

Advanced pathology tests and services.

Get the most accurate and timely results to allow you to make a confident and timely diagnosis.

Get the most accurate and timely results to allow you to make a confident and timely diagnosis:

  • Dermatopathology
  • Equine
  • Avian and exotic species
  • Reproductive pathology
  • Cancer pathology
  • Cytology
  • Hematology
  • Specific organs (e.g., bone marrow, eye, liver, lung, and gastrointestinal tract)

Numerous services available at no additional charge:

  • Evaluation of surgical margins
  • Internal case review and collaboration
  • High-resolution digital images of IDEXX cytology and biopsy slides—exclusively on VetConnect PLUS
  • Comments regarding biological behaviour and etiology
  • Selected special stains
  • Trimming
  • Decalcification

Specialty pathology services include:

  • Immunohistochemistry (IHC)
  • Fluid analyses
  • Flow cytometry (immunophenotyping)
  • Bone marrow cytology
  • Mast cell tumour prognostic panel
  • Lymphoma clonality (PARR)


Service and associated turnaround time requires the IDEXX Digital Cytology instrument, which is sold separately.
A computer, phone, and watch showing the VetConnect PLUS application.

When you want results, there’s only one place to look.

VetConnect PLUS brings diagnostics and pathology together, all in one place. So you can stop hunting for pieces of the picture and start seeing your patients' health more clearly.

  • Notifications when you need them.
    Choose to get real-time alerts when results come in, plus check images, pathology notes, and test status updates any time of day with the VetConnect PLUS mobile app.
  • Results in high definition.
    View, download, and share high-resolution images of your cytology and biopsy cases at no additional charge, for a more comprehensive report.
  • Comprehensive diagnostics.
    Expand your pathology insights by viewing all IDEXX diagnostics for your patient all in one place.

Learn more

Featured case

Oral cavity mass: melanoma or lymphoma?

A dog that had a melanoma in the oral cavity and had been treated with radiation therapy some time ago re‑presented to the oncologist for a second oral mass. The oncologist assumed the mass was another melanoma, and at that time, she sampled the mandibular lymph nodes, which were firm and prominent. Dr. Jamie Haddad, a double-boarded anatomic and clinical pathologist at IDEXX, received that cytology, and it looked like lymphoma rather than melanoma, but she couldn’t rule out an unusual melanoma. The oncologist was going to assume the new oral mass was melanoma because of the history until she saw the digital image of the cytology specimen on VetConnect PLUS and changed her mind. She biopsied the oral mass, and it proved to be a subtype of lymphoma, not melanoma.

It was the photo in the cytology report that convinced me I should biopsy.

—Attending oncologist

Cytology image of stained cells.
   Cytology image
Biopsy image taken through a microscope
   Biopsy image


Forms and other resources

Access IDEXX Reference Laboratories specimen guidelines, IDEXX Online Ordering, and educational resources.

Directory of Services in
VetConnect PLUS

Browse the online Directory of Services in VetConnect PLUS to see a comprehensive list of offerings from IDEXX Reference Laboratories. Save them by clicking the star so you can easily access them anytime.

IDEXX Reference Laboratories Support

We support your practice with our customer support, technical support, and medical consulting services team, including our diagnostic support veterinarians and board-certified veterinary specialists.
Call us at 1-800-667-3411.

Learn more about a specific product or service.
A representative will help you every step of the way.

*Indicates that this pathologist is double-boarded.

Note: There may be times when weather or operational considerations cause delays in providing test results. When this happens, we will inform you as quickly as possible with the most complete information available.