Specialty Oral Pathology for Animals

Providing specialized oral pathology services to veterinarians.

SOPA is currently not accepting submissions from new clients.



The mission of SOPA is to provide specialized pathology services to veterinarians in order to support a rigorous, team-based approach to the diagnosis, prognostication, and treatment of oral and dental diseases in animals. Cases from all species (except the human!) are welcome. If you are a veterinarian and your patients have a mouth, then SOPA is for YOU!


Why Specialized Pathology?

The more I learn, the more I realize how much I don't know.” - Albert Einstein

Limiting practice to a specialized area of veterinary medicine means that I can develop a deeper understanding of the specialty and thereby provide service that is clinically relevant and valuable. - Dr. Bell

As a specialized pathologist, my caseload is smaller than most veterinary pathologists in diagnostic practice. This allows me to be thorough and give each case the focused attention that it deserves. Being focused on one subject area allows me to hone my practice more efficiently, improves my ability to recognize patterns of disease, and increases my familiarity with rare diseases.


Treading Lightly

Even small businesses have a huge impact on the environment. We have found options for recycling the abundant packaging material that we receive including Tyvek shipping envelopes, Styrofoam, bubble wrap, thin plastics, more conventional plastics, and paper/cardboard. We prioritize formalin reuse over disposal, and we also reuse as much of the packing material as we can, such as clean paper towels, clinical pads, absorbent material and seal-able bags. 


Scientific and medical discovery is a creative process that starts with good observational data. Diagnostic case material is invaluable to advancing our understanding of oral and maxillofacial disease in companion animals.


• Blackford Winders C, Bell CM, Goldschmidt S (2020). Amyloid-Producing Odontogenic Tumor With Pulmonary Metastasis in a Spinone Italiano-Proof of Malignant Potential. Front Vet Sci. 29;7:576376.

• Tjepkema J, Bell CM, Soukup JW (2020). Presentation, Diagnostic Imaging, and Clinical Outcome of Conventional Ameloblastoma in Dogs. J Vet Dent. 37(1):6-13.

• Goldschmidt S, Bell CM, et al. (2020). Biological Behavior of Canine Acanthomatous Ameloblastoma Assessed with Computed Tomography and Histopathology: A Comparative Study. J Vet Dent. 37(3):126-132.

• Soukup JW, Bell CM (2020). The Canine Furcation Cyst – A Newly Defined Odontogenic Cyst in Dogs: 20 cases (2013-2017). J Vet Med Assoc. 256(12):1359-1367.

• Huang P, Bell C, Wallace V, Murphy BG (2019). Mixed odontogenic tumors in four young dogs: ameloblastic fibroma and ameloblastic fibro-odontoma. J Vet Diagn Invest. 31(1):98-102.

• Hoddesson D, Soukup JW, Bell CM (2019). Diagnosis and Treatment of an Odontogenic Epithelial Tumor in a Dog with Features of Squamous Odontogenic Tumor. J Vet Dent. 36(2):90-96.

• Murphy B, Michel A, LaCouceur EB, Bell CM, Lin M, Imai DM (2017). Ameloblastoma of the jaw in three species of rodent: a domestic brown rat, Syrian hamster and Amargosa vole. J Comp Pathol. 157:145-149.

• Murphy B, Bell CM, Koehne A, Dubielzig RR (2017). Mandibular odontoameloblastoma in a rat and a horse. J Vet Diagn Invest. 29:536-540.

• Goldschmidt S, Bell CM, Hetzel S, Soukup JW (2017). Clinical characterization of canine acanthomatous ameloblastoma in 263 dogs and the influence of post-surgical histopathological margin on local recurrence. J Vet Dent. 34:241-247.

• Tjepkema J, Soukup JW, Bell CM (2017). Suspected lateral periodontal cyst presenting concurrently with canine acanthomatous ameloblastoma in a 2 year-old standard poodle. J Vet Dent. 34:141-147.

• Hoyer NK, Bannon KM, Bell CM, Soukup JW (2016). Extensive maxillary odontomas in 2 dogs. J Vet Dent. 33:234-242.

• Bell CM, Soukup JW (2015). Histologic, clinical, and radiologic findings of alveolar bone expansion and osteomyelitis of the jaws in cats. Vet Pathol. 52:910-918.

• Soukup JW, Bell CM (2014). The nomenclature and classification of odontogenic tumors - Part I: A historical review. J Vet Dent. 31:228-232.

• Bell CM, Soukup JW (2014). The nomenclature and classification of odontogenic tumors - Part II: Clarification of specific nomenclature. J Vet Dent. 31:234-243.

• Riehl J, Bell C, Constantaras M, Snyder C, Charlier C, Soukup J (2014). Clinicopathologic characterization of oral pyogenic granuloma in 8 cats. J Vet Dent. 31(2):80-86.

• Bell C, Pot S, Dubielzig R (2013). Septic implantation syndrome in dogs and cats: A distinct pattern of endophthalmitis with lenticular abscess. Vet Ophthalmol 16(3):180-185.

• Bell CM, Schwarz T, Dubielzig RR (2011). Diagnostic features of feline restrictive orbital myofibroblastic sarcoma. Vet Pathol. 48(3): 71-750.  

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