Peer-reviewed veterinary case report
Dental benign cementomas in three horses.
- Journal:
- Veterinary pathology
- Year:
- 2007
- Authors:
- Kreutzer, R et al.
- Affiliation:
- Bergische Tierklinik Heiligenhaus GmbH · Germany
- Species:
- horse
Plain-English summary
In this study, three horses were found to have a rare type of dental tumor called a cementoma, which is made up of tissue similar to what forms teeth. Each horse had noticeable bumps in their upper and lower jaws that extended into their mouths, causing pain and problems with how their teeth fit together. The veterinarians took X-rays and saw well-defined masses around the roots of some teeth, leading to the decision to extract those teeth. When examined closely, the tumors were hard, grayish-white masses that showed a lot of cementum-like tissue and very few abnormal cells. All three horses had similar findings, and while these tumors are quite distinct, the possibility of another condition called hypercementosis (an excessive growth of cementum) was also considered.
Abstract
Cementoma is a very rare odontogenic neoplasm of mesenchymal origin. Clinically, in 3 horses, multiple bony enlargements of the upper and lower jaw extending into the oral cavity were observed. Radiographically, multiple, well-circumscribed, radiopaque masses surrounding the roots of the upper and lower incisors or an upper premolar tooth were present. Due to malocclusion and local pain, single teeth were extracted in each case. Grossly, a hard grayish-white mass surrounding the root of the incisors and the premolars was identified. Histopathologically, the tumors consisted of excessive deposition of cementum-like tissue. Cells, resembling cementoblasts, lined irregularly shaped lacunae, which were present in the tumor tissue, and showed minimal cellular pleomorphism. Mitotic figures were not present. Macroscopically and histologically, all 3 equine cases displayed great similarities to cementomas in other species. However, due to their high degree of differentiation, hypercementosis must be considered as a differential diagnosis.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/17606518/