Odontogenic Mass with Tooth 203 

Case Study: Gypsy Vanner with Facial Swelling

Signalment:
3-year-old Gypsy Vanner gelding

History & Presentation:
The patient was referred for evaluation of a persistent left facial swelling that had been present for five months.

Physical Examination Findings:

  • Swelling: 10x6x2 cm mass at the level of the left nare

  • Bony Changes: Thickening of the nare floor and premaxilla region

  • Airflow Restriction: Reduced airflow from the left nare

  • No Signs of Infection: No nasal discharge or malodorous breath

  • Normal Eating Habits: No issues with mastication

Radiographs from the referring veterinarian revealed an osseous abnormality at the level of the left premaxilla. A CT scan was recommended to determine the extent and origin of the mass and assess treatment options.

Diagnosis & Treatment:
CT imaging confirmed an odontogenic mass associated with tooth 203. The horse underwent standing surgery for mass removal, which was successfully performed. The patient was discharged from the hospital following an uneventful recovery.

Outcome & Follow-Up:
Histopathology results are pending, but the mass is suspected to be an odontoma. This case highlights the value of advanced imaging in diagnosing complex craniofacial abnormalities and guiding successful surgical intervention.

Equine Center and Dr. Nicolas Ernst and his fantastic crew.

This case secured 2nd place in Asto CT's Best Scans of the Year contest (Head/Neck Category), highlighting the expertise of Dr. Sabrina Brounts and her outstanding team at the University of Wisconsin-SVM Large Animal Hospital.

david ergun